Epson S1C63558 Data receive procedure

CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Serial Interface)

Data receive procedure

The control procedure and operation during receiving is as follows.

(1) Write "0" in the receive enable register RXEN and

Data

receiving

transmit enable register TXEN to reset the serial

interface.

(2) Write "1" in the receive enable register RXEN to set

RXEN ←

0, TXEN ← 0

into the receiving enable status.

RXEN ←

1

(3) In case of the master mode, confirm the transmit ready

No

status on the slave side (external serial input/output

Transmitter

ready ?

device), if necessary. Wait until it reaches the transmit

In case of master mode

ready status.

Yes

RXTRG ←

1

(4) Write "1" in the receive control bit RXTRG and start

receiving.

ISRC

= 1 ?

No

In the master mode, this control causes the synchro-

Yes

nous clock to change to enable and is provided to the

Received data reading

shift register for receiving and output from the SCLK

from TRXD0–TRXD7

terminal.

In the slave mode, it waits for the synchronous clock

No

to be input from the SCLK terminal. The received data

Receiving

complete ?

input from the SIN terminal is successively incorpo-

Yes

rated into the shift register in synchronization with the

RXEN ←

0

rising edge of the synchronous clock.

At the point where the data of the 8th bit has been

End

incorporated at the final (8th) rising edge of the

synchronous clock, the content of the shift register is

Fig. 4.11.6.3

Receiving procedure in clock

sent to the receive data buffer and the receiving

synchronous mode

complete interrupt factor flag ISRC is set to "1". When interrupt has been enabled, a receiving complete interrupt is generated at this point.

(5)Read the received data from TRXD0–TRXD7 using receiving complete interrupt.

(6)Repeat steps (3) to (5) for the number of bytes of receiving data, and then set the receive disable status by writing "0" to the receive enable register RXEN, when the receiving is completed.

84

EPSON

S1C63558 TECHNICAL MANUAL

Contents

Page NOTICE © SEIKO EPSON CORPORATION 2001, All rights reserved SEIKO EPSON CORPORATION Page Page The information of the product number change Configuration of product number Devices S1 C 63158 F 0A01 Packing specification Page OUTLINE Features Block Diagram Pin Layout Diagram Pin Description 4.6 I/O Ports (P00–P03, P10–P13, P20–P23and P30–P33) 4.7 LCD Driver (COM0–COM16, SEG0–SEG39) Clock Timer Stopwatch Timer 4.10 Programmable Timer SUMMARY OF NOTES 5.1 Notes for Low Current Consumption 5.2 Summary of Notes by Function Precautions on Mounting BASIC EXTERNAL WIRING DIAGRAM CHAPTER 8 PACKAGE Plastic Package Ceramic Package for Test Samples CHAPTER 9 PAD LAYOUT Diagram of Pad Layout CHAPTER 1 OUTLINE 1.1 Features 1.2 Block Diagram 1.3 Pin Layout Diagram 1.4 Pin Description 1.5 Mask Option (8)Output specification of the DP terminal (9)Gain of FSK demodulator input amplifier (10)Output specification of other special output terminals <Mask option list 1.MULTIPLE KEY ENTRY RESET COMBINATION 5. I/O PORT OUTPUT SPECIFICATION 6. I/O PORT PULL UP RESISTOR 7. DP PORT OUTPUT SPECIFICATION 8.SVD EXTERNAL VOLTAGE DETECTION 9.LCD DRIVER SPECIFICATION 2.1 Power Supply 2.1.1 Voltage <VD1> for oscillation circuit and internal circuits 2.1.2 Voltage <VC1–VC5>for LCD driving 2.2 Initial Reset 2.2.1 Reset terminal (RESET) 2.2.2 Simultaneous low input to terminals K00–K03 2.2.3 Internal register at initial resetting 2.2.4 Terminal settings at initial resetting 2.3 Test Terminal (TEST) CHAPTER 3 CPU, ROM, RAM 3.1 CPU 3.2 Code ROM 3.3 RAM 3.4 Data ROM CHAPTER 4 PERIPHERAL CIRCUITS AND OPERATION 4.1 Memory Map Table 4.1.1 (a) I/O memory map (FF00H–FF18H) Remarks ∗ 1 Initial value at initial reset Constantly "0" when being read ∗ 2 Not set in the circuit Table 4.1.1 (b) I/O memory map (FF20H–FF42H) Table 4.1.1 (c) I/O memory map (FF44H–FF4DH) Table 4.1.1 (d) I/O memory map (FF4EH–FF67H) Table 4.1.1 (e) I/O memory map (FF6CH–FF7AH) ransmit/receive data Table 4.1.1 (f) I/O memory map (FF7CH–FFCBH) Table 4.1.1 (g) I/O memory map (FFE2H–FFF7H) Table 4.1.1 (h) I/O memory map (FFF8H–FFFAH) 4.2 Watchdog Timer 4.2.1 Configuration of watchdog timer 4.2.2 Interrupt function 4.2.3 I/O memory of watchdog timer 4.2.4 Programming notes 4.3 Oscillation Circuit 4.3.1 Configuration of oscillation circuit 4.3.2 OSC1 oscillation circuit 4.3.3 OSC3 oscillation circuit 4.3.4 Switching the CPU operating clock 4.3.5 Clock frequency and instruction execution time 4.3.6 I/O memory of oscillation circuit 4.3.7 Programming notes 4.4 Input Ports (K00–K03and K10–K13) 4.4.1 Configuration of input ports 4.4.2 Interrupt function 4.4.3 Mask option 4.4.4 I/O memory of input ports SIK00–SIK03:K0 port interrupt selection register (FF20H) SIK10–SIK13:K1 port interrupt selection register (FF24H) KCP00–KCP03:K0 port input comparison register (FF22H) KCP10–KCP13:K1 port input comparison register (FF26H) EIK0: K0 input interrupt mask register (FFE4H•D0) 4.4.5 Programming notes Output Ports 4.5.1 Configuration of output ports 4.5.2 Mask option 4.5.3 High impedance control 4.5.4 Special output •XBZ (R00) •BZ (R01) •TOUT (R02) •FOUT (R03) •XTMUTE (R10) •XRMUTE (R11) •HDO (R12) •HFO (R13) 4.5.5 I/O memory of output ports R00HIZ–R03HIZ:R0 port high impedance control register (FF30H) R10HIZ–R13HIZ:R1 port high impedance control register (FF32H) R20HIZ–R23HIZ:R2 port high impedance control register (FF34H) R00–R03:R0 output port data register (FF31H) R10–R13:R1 output port data register (FF33H) PTOUT: TOUT output control register (FFC1H•D2) FOUTE: FOUT output control register (FF06H•D3) FOFQ0, FOFQ1: FOUT frequency selection register (FF06H•D0, D1) CTMO: R10 output selection register (FF13H•D0) 4.5.6 Programming notes 4.6 I/O Ports (P00–P03, P10–P13, P20–P23and P30–P33) 4.6.1 Configuration of I/O ports 4.6.2 Mask option 4.6.3 I/O control registers and input/output mode 4.6.4 Pull-upduring input mode 4.6.5 Special outputs (CL, FR) 4.6.6 I/O memory of I/O ports Table 4.6.6.1(b) Control bits of I/O ports (1) Selection of port function EXLCDC: Expanded LCD driver signal control register (FF61H•D3) Sets P22 and P23 to the CL signal and the FR signal output ports When "1" is written: CL/FR signal output ESIF: Serial interface (1) enable register (FF70H•D0) ESIFS: Serial interface (2) enable register (FF58H•D0) (2) I/O port control P00–P03:P0 I/O port data register (FF42H) P10–P13:P1 I/O port data register (FF46H) IOC00–IOC03:P0 port I/O control register (FF40H) IOC10–IOC13:P1 port I/O control register (FF44H) IOC20–IOC23:P2 port I/O control register (FF48H) IOC30–IOC33:P3 port I/O control register (FF4CH) PUL00–PUL03:P0 port pull-upcontrol register (FF41H) 4.6.7 Programming notes 4.7 LCD Driver (COM0–COM16, SEG0–SEG39) 4.7.1 Configuration of LCD driver 4.7.2 Mask option 4.7.3 Power supply for LCD driving 4.7.4 LCD display control (ON/OFF) and switching of duty (2)Switching of drive duty 4.7.5 Display memory Page 4.7.6 LCD contrast adjustment 4.7.7 I/O memory of LCD driver LPWR: LCD power control (ON/OFF) register (FF60H•D0) LDUTY0, LDUTY1: LCD drive duty switching register (FF60H•D2, D3) ALON: LCD all ON control register (FF61H•D1) ALOFF: LCD all OFF control register (FF61H•D2) 4.7.8 Programming notes 4.8 Clock Timer 4.8.1 Configuration of clock timer 4.8.2 Data reading and hold function 4.8.3 Interrupt function 4.8.4 I/O memory of clock timer 4.8.5 Programming notes 4.9 Stopwatch Timer 4.9.1 Configuration of stopwatch timer 4.9.2 Count-uppattern 4.9.3 Interrupt function 4.9.4 I/O memory of stopwatch timer 4.9.5 Programming notes 4.10 Programmable Timer 4.10.1 Configuration of programmable timer 4.10.2 Setting of initial value and counting down 4.10.3 Counter mode 4.10.4 Setting of input clock in timer mode 4.10.5 Interrupt function 4.10.6 Setting of TOUT output 4.10.7 Transfer rate setting for serial interface 4.10.8 I/O memory of programmable timer CKSEL0: Prescaler 0 source clock selection register (FFC1H•D0) CKSEL1: Prescaler 1 source clock selection register (FFC1H•D1) EVCNT: Timer 0 counter mode selection register (FFC0H•D2) FCSEL: Timer 0 function selection register (FFC0H•D1) PLPOL: Timer 0 pulse polarity selection register (FFC0H•D0) RLD00–RLD07:Timer 0 reload data register (FFC4H, FFC5H) RLD10–RLD17:Timer 1 reload data register (FFC6H, FFC7H) PTD00–PTD07:Timer 0 counter data (FFC8H, FFC9H) PTRST0: Timer 0 reset (reload) (FFC2H•D1) PTRST1: Timer 1 reset (reload) (FFC3H•D1) PTRUN0: Timer 0 RUN/STOP control register (FFC2H•D0) PTRUN1: Timer 1 RUN/STOP control register (FFC3H•D0) CHSEL: TOUT output channel selection register (FFC1H•D3) EIPT0: Timer 0 interrupt mask register (FFE2H•D0) EIPT1: Timer 1 interrupt mask register (FFE2H•D1) IPT0: Timer 0 interrupt factor flag (FFF2H•D0) IPT1: Timer 1 interrupt factor flag (FFF2H•D1) 4.10.9 Programming notes 4.11 Serial Interface 4.11.1 Configuration of serial interface 4.11.2 Mask option 4.11.3 Transfer modes Clock synchronous master mode Clock synchronous slave mode 7-bitasynchronous mode 8-bitasynchronous 8-bitmode 4.11.4 Clock source 4.11.5 Transmit-receivecontrol 4.11.6 Operation of clock synchronous transfer Data transmit procedure Data receive procedure Transmit/receive ready (SRDY) signal Timing chart 4.11.7 Operation of asynchronous transfer Page Page Receive error 4.11.8 Interrupt function Transmit completion interrupt Receive completion interrupt Error interrupt 4.11.9 I/O memory of serial interface Table 4.11.9.1(b) Serial interface control bits Sets P10–P13to the input/output port for the serial interface When "1" is written: Serial interface PUL10: Serial interface (1) SIN pull-upcontrol register (FF45H•D0) PUL12: Serial interface (1) SCLK pull-upcontrol register (FF45H•D2) PUL30: Serial interface (2) SIN pull-upcontrol register (FF4DH•D0) PUL32: Serial interface (2) SCLK pull-upcontrol register (FF4DH•D2) SMD0, SMD1: Serial interface (1) mode selection register (FF70H•D1, D2) EPR: Serial interface (1) parity enable register (FF71H•D3) EPRS: Serial interface (2) parity enable register (FF59H•D3) PMD: Serial interface (1) parity mode selection register (FF71H•D2) PMDS: Serial interface (2) parity mode selection register (FF59H•D2) TXEN: Serial interface (1) transmit enable register (FF72H•D0) RXEN: Serial interface (1) receive enable register (FF72H•D2) RXENS: Serial interface (2) receive enable register (FF5AH•D2) RXTRG: Serial interface (1) receive trigger/status (FF72H•D3) RXTRGS: Serial interface (2) receive trigger/status (FF5AH•D3) TRXD0–TRXD7:Serial interface (1) transmit/receive data (FF74H, FF75H) During receiving OER: Serial interface (1) overrun error flag (FF73H•D0) OERS: Serial interface (2) overrun error flag (FF5BH•D0) PER: Serial interface (1) parity error flag (FF73H•D1) PERS: Serial interface (2) parity error flag (FF5BH•D1) FER: Serial interface (1) framing error flag (FF73H•D2) FERS: Serial interface (2) framing error flag (FF5BH•D2) 4.11.10 Programming notes 4.12 Sound Generator 4.12.1 Configuration of sound generator 4.12.2 Buzzer output circuit 4.12.3 Control of buzzer output 4.12.4 Setting of buzzer frequency and sound level 4.12.5 Digital envelope 4.12.6 One-shotoutput 4.12.7 I/O memory of sound generator BZE: BZ output control register (FF6CH•D0) BZFQ0–BZFQ2:Buzzer frequency selection register (FF6EH•D0–D2) BDTY0–BDTY2:Duty level selection register (FF6FH•D0–D2) ENRST: Envelope reset (FF6CH•D2) ENON: Envelope ON/OFF control register (FF6CH•D1) ENRTM: Envelope releasing time selection register (FF6CH•D3) 4.12.8 Programming notes 4.13 SVD (Supply Voltage Detection) Circuit 4.13.1 Configuration of SVD circuit 4.13.2 Mask option 4.13.3 SVD operation 4.13.4 I/O memory of SVD circuit 4.13.5 Programming notes 4.14 Telephone Function (Tone/Pulse Dialer) 4.14.1 Configuration of tone/pulse dialer 4.14.2 Mask option 4.14.3 Operation of telephone function (2)Executing (3)Interrupt 4.14.4 Tone mode (DTMF) Page Page 4.14.5 Pulse mode (DP) Page Page 4.14.6 Pause Page 4.14.7 Flash 4.14.8 Hold-line 4.14.9 Interrupt 4.14.10 I/O memory of telephone function Page OSCC: OSC3 oscillation control (FF00H•D2) TPS: Tone/Pulse mode selection (FF10H•D3) MB: Make/Break ratio selection (FF10H•D1) DRS: Dialing pulse rate selection (FF10H•D0) PTS0–PTS3:Pause time selection (FF11H) FTS0–FTS3:Flash time selection (FF12H) HOLD: Hold-linefunction (FF14H•D2) PAUSE: Pause function (FF14H•D1) FLASH: Flash function (FF14H•D0) HF: Handfree (FF14H•D3) IDP0–IDP3: Inter-digitpause time selection (FF15H) SINR: DTMF row frequencies output enable (FF16H•D1) SINC: DTMF column frequencies output enable (FF16H•D0) TCD0–TCD3:Telephone code for dialing (FF17H) (1)Pulse mode (2)Tone mode CRMUT: Receive mute control (FF18H•D1) CTMUT: Transmit mute control (FF18H•D0) HSON: Hook switch ON/OFF (FF18H•D0) CTO: Continuous output tone selection (FF16H•D3) EID: Interrupt mask register (FFE9H•D0) 4.14.11 Programming notes 4.15 FSK Demodulator 4.15.1 Configuration of FSK demodulator Page 4.15.2 Mask option 4.15.3 Ring/carrier detection and interrupt 4.15.4 Inputting FSK data Page 4.15.5 I/O memory of FSK demodulator CDET: Carrier detection bit (FF66H•D0) RDETCP: RDET comparison register (FF67H•D1) CDETCP: CDET comparison register (FF67H•D0) EIRDET, EICDET: Interrupt mask registers (FFEAH•D1, D0) IRDET, ICDET: Interrupt factor flags (FFFAH•D1, D0) 4.15.6 Programming notes 4.16 Interrupt and HALT Fig. 4.16.1 Configuration of the interrupt circuit 4.16.1 Interrupt factor 4.16.2 Interrupt mask 4.16.3 Interrupt vector 4.16.4 I/O memory of interrupt Table 4.16.4.1(b) Control bits of interrupt (2) Refer to Section 4.14, "Telephone Function RDETCP, CDETCP: RDETP, CDET comparison registers (FF67H•D1, D0) Refer to Section 4.15, "FSK Demodulator EIPT1, EIPT0: Interrupt mask registers (FFE2H•D1, D0) 4.16.5 Programming notes 5.1 Notes for Low Current Consumption 5.2 Summary of Notes by Function Output port I/O port LCD driver Clock timer Stopwatch timer Serial interface (1), (2) Sound generator SVD circuit Telephone function FSK demodulator 5.3 Precautions on Mounting <Arrangement of Signal Lines <Precautions for Visible Radiation (when bare chip is mounted) CHAPTER 6 BASIC EXTERNAL WIRING DIAGRAM CHAPTER 7 ELECTRICAL CHARACTERISTICS Absolute Maximum Rating 7.2 Recommended Operating Conditions 7.3 DC Characteristics 7.4 Analog Circuit Characteristics and Power Current Consumption 7.5 Oscillation Characteristics 7.6 Serial Interface (1), (2) AC Characteristics 7.7 FSK Demodulator Characteristics 7.8 Telephone Function Characteristics 7.9 Timing Chart 7.10 Characteristic Curves (reference value) High level output current (SEGxx) Low level output current (SEGxx) CHAPTER 8 PACKAGE 8.1 Plastic Package 8.2 Ceramic Package for Test Samples CHAPTER 9 PAD LAYOUT 9.1 Diagram of Pad Layout Pad Coordinates EPSON ELECTRONICS AMERICA, INC - HEADQUARTERS - SALES OFFICES West Central “Saving” Technology Epson IS energy savings S1C63558 Technical Manual