IBM EM78P312N manual Pin Description, Symbol Pin No Type Function

Page 6

EM78P312N

8-Bit Microcontroller

4

Pin Description

 

 

 

 

Table 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symbol

 

Pin No.

 

Type

 

Function

 

 

 

 

 

 

 

 

 

 

VDD

 

28

 

−

 

Power supply

 

 

 

 

 

 

 

 

 

 

 

OSCI

 

2

 

I

 

Crystal type: Crystal input terminal

 

 

 

 

 

RC type: RC oscillator input pin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Crystal type: Output terminal for crystal oscillator

 

 

OSCO

 

1

 

I/O

 

RC type: Instruction clock output

 

 

 

 

 

 

 

 

External clock signal input

 

 

 

 

 

 

 

 

 

 

 

/RESET

 

27

 

I

 

Input pin with Schmitt Trigger. If this pin remains at logic low, the

 

 

 

 

 

controller will also remain in reset condition.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8-bit bidiectional input/output pins.

 

 

 

 

 

 

 

 

P60 can be used as external Interrupt 0 (/INT0).

 

 

 

 

 

 

 

 

P61 can be used as external Interrupt 1 (INT1).

 

 

P60~P67

 

19~26

 

I/O

 

P62 can be used as 16-bit Timer/Counter 2 (TC2).

 

 

 

 

 

 

 

 

P63 can be used as divider output (/TONE).

 

 

 

 

 

 

 

 

P64 slave mode enable (/SS).

 

 

 

 

 

 

 

 

P60 ~ P63 can be used as pull-high or pull-low pins.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8-bit bidiectional input/output pins.

 

 

 

 

 

 

 

 

P70 can be used as SPI serial clock input/output (/SCK)

 

 

 

 

 

 

 

 

P71 can be used as SPI serial data input (SI) or UART data receive

 

 

P70~P73

 

 

 

 

 

input (RX)

 

 

 

15~18

 

I/O

 

P72 can be used as SPI serial data output (SO) or UART data

 

 

 

 

 

 

 

 

transmit output (TX)

 

 

 

 

 

 

 

 

P73 can be used as Sleep mode release input (/SLEEP) or external

 

 

 

 

 

 

 

 

interrupt Input 5 (/INT5)

 

 

 

 

 

 

 

 

P70 ~ P73 can be used as pull-high or pull-low pins

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2-bit bidiectional input/output pins.

 

 

 

 

 

 

 

 

P80 can be used as 8-bit Timer/Counter 3 (TC3) or external

 

 

P80~P81

 

12~13

 

I/O

 

Interrupt Input 3 (INT3).

 

 

 

 

 

P81 can be used as 8-bit Timer/Counter 4 (TC4) or programmable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

divider output (PDO).

 

 

 

 

 

 

 

 

P80 ~ P81 can be used as pull-high or pull-low pins.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8-bit bidiectional input/output pins.

 

 

P90~P97

 

4~11

 

I/O

 

P90~P97 can be used as 8 channel 10-bit resolution A/D converter.

 

 

 

 

 

 

 

 

P97 can be used as AD reference power supply input (VREF).

 

 

VSS

 

14

 

−

 

Ground

 

 

NC

 

3

 

−

 

No connection

 

 

 

 

 

 

 

 

 

 

 

OTP Programming Pins

 

 

 

 

VPP

 

27

 

I

 

Programming voltage input

 

 

 

 

 

 

 

 

 

 

 

ACLK

 

1

 

I

 

CLK for OTP memory address increment

 

 

DATAIN

 

25

 

I/O

 

ROM code series input and series output pin

 

 

 

 

 

 

 

 

 

 

 

DINCK

 

26

 

I

 

ROM code input clock

 

 

 

 

 

 

 

 

 

 

 

PGMB

 

24

 

I

 

Program write enable pin. Active low.

 

 

 

 

 

 

 

 

 

 

 

OEB

 

23

 

I

 

Output enable pin. Active low.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 •

 

 

 

 

 

 

Product Specification (V1.0) 10.03.2006

(This specification is subject to change without further notice)

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Contents EM78P312N DOC. VersionElan Microelectronics Corporation Contents 16.2 14.116.1 16.3General Description Bit MicrocontrollerSymbol Pin No Type Function Pin DescriptionFunctional Block Diagram Function DescriptionOperating Registers Operating RegistersBit Microcontroller R0 Indirect Addressing Register R1 Time Clock /CounterR2 Program Counter & Stack Bit 7 ~ Bit 6 RBS1 ~ RBS0 R-Register page select User Memory SpaceR3 Status Register RBS1 RBS0Bit 0 C Carry flag R4 RAM Select Register Bit 1 SIS Sleep and Idle mode selectSIS = 0 Idle mode SIS = 1 Sleep mode R5 System Control RegisterBit 7 ~ Bit 0 P67 ~ P60 8-bit Port 6 I/O data register RB Timer/Counter 4 Control RegisterBit Microcontroller R6 Port 6 I/O Data Register R7 Port 7 I/O Data RegisterTC4CK2 TC4CK1 TC4CK0 RC Timer 4 Data BufferClock Source Resolution Max. Time Fosc=8MBit Microcontroller RE Interrupt Status Flag Register RFInterrupt Status Flag RegisterBank 1 R7 TC3DB Timer 3 Data Buffer B Bank 1 R5 TC3CR Timer/Counter 3 Control RegisterTC3M = 1 Capture mode Bank 1 R6 TC3DA Timer 3 Data Buffer a Bit 7 TC3CAP Software capture controlTC2S = 0 Stop and counter clear Bank 1 R9 TC2DH Timer 2 Data Buffer High ByteBank 1 RA TC2DL Timer 2 Data Buffer Low Byte Bank 1 RB Adcr AD Control RegisterBank 1 RC Adic AD Input Pin Control Bit 7 ~ Bit 0 ADE7 ~ ADE0 AD input pin enable controlBit 5~ Bit 4 ADCK1 ~ ADCK0 AD Conversion Time Select Bank 1 RD Addh AD High 8-bit Data BufferBank 2 R5 URC1 Uart Control Register TEN = 0 Disable TEN = 1 EnableBit Microcontroller Bank 1 RE Tbktc TBT/Keytone Control BitBRATE2 BRATE1 BRATE0 Bank 2 R7 URS Uart Status RegisterBit 7 URRD8 Receiving data Bit TC2CK1 TC2CK0Even = 0 Odd parity Even = 1 Even parity Bit 5 PRE Enable parity additionBit 6 Even Select parity check Bank 2 R9 Urtd Uart Transmit Data BufferEDS = 0 Rising edge EDS = 1 Falling edge Bit 5 ~ Bit 3 BRS0 ~ BRS2 SPI Clock Source SelectBit 2 EDS Data shift out edge select Bit 0 WBE Write buffer empty flag. Read onlyBank 3 RB PLC1 Pull Low Control Register PHE6x = 1 Disable P6x pull highTransfer Mode SPID7 SPID6 SPID5 SPID4 SPID3 SPID2 SPID1 SPID0Special Purpose Registers INT1ES = 0 Rising edge INT1ES = 1 Falling edge IOC6 ~ IOC9 − I/O Port Control RegisterIntcr − INT Control Register Address 0Bh TC2ES = 0 Rising edge TC2ES = 1 Falling edgeExternal Interrupt Adoscr − AD Offset Control Register Address 0ChCali Sign IMR2 − Interrupt Mask Register 2 Address 0Fh Uerrie Urie Utie Tbie EXIE1 TCIE0Mode Switching Control CPU Operation ModeRegisters for CPU Operation Mode Operation ModeAD Converter Sleep Mode Idle ModeWake-up Signal R5 SIS = 1+SLEP R5 SIS= 0 + Slep Instruction Wake-up MethodsSampling Time Operation Mode Max. Frequency Max. Conversion Rate per BitADC Data Register Conversion TimeTime Base Timer and Keytone Generator Address Name BitMUX Uart Universal Asynchronous Receiver/Transmitter Registers for Uart CircuitName Bit Uart Mode TransmittingReceiving Baud Rate GeneratorSPI Serial Peripheral Interface Registers for the SPI CircuitRbank Address Name Bit Bit Transmit Mode Shift Direction and Sample PhaseTransfer Mode Serial ClockBit Microcontroller Bit Receive Mode Bit Transmit/Receive ModeSCK pin Spis Multiple Device Connect /SSTimer/Counter Registers for Timer/Counter 2 CircuitTimer Mode Counter ModeWindow Mode Registers for Timer/Counter 3 Circuit 21 Window Mode Timing ChartCapture Mode 22 Configuration of Timer/Counter3Registers for Timer 4 Circuit TCIF4PDO Mode TCR4Up-counter PWM Mode12 TCC/WDT & Prescaler TC4 InterruptReset and Wake-up Reset13 I/O Ports Wake-up from Sleep Mode Wake-up from Idle ModeAddress Name Reset Type Bit Summary of the Initialized Values for RegistersBit Microcontroller Register Bank SCRAddres URTD8 Bit Microcontroller General Purpose Registers Reset TypeStatus of RST, T, and P of the Status Register Events that may affect the T and P Status28 Controller Reset Block Diagram InterruptCrystal Oscillator/Ceramic Resonators Crystal OscillatorOscillator Modes Summary of Maximum Operating SpeedsOscillator Type Frequency Mode Frequency C1 pF C2 pF 740 EM78P312N 809NExternal RC Oscillator Mode OS CICode Option Register Word Enwdtb = 0 Enable Enwdtb = 1 DisableCode Option Register Bit 12 ~ 9 Not usedCustomer ID Register Power-on ConsiderationsExternal Power-on Reset Circuit OSC = 0 RC type OSC = 1 Crystal typeEM78P312N Residue-Voltage ProtectionVdd EM78P809NInstruction Set Binary Instruction Hex Mnemonic Operation StatusBinary Instruction Hex Mnemonic Operation Status Affected DECRecommended Operating Conditions Symbol Parameter Condition Min Typ Max UnitAbsolute Maximum Ratings Vss =DC Electrical Characteristics Ta= 25 C, VDD= 5.0V ± 5%, VSS=Ta= 25 C, VDD= 3.0V ± 5%, VSS= Varef AC Electrical Characteristic Symbol Parameter Conditions Min Typ Max UnitTa=- 40C ~ 85 C, VDD=5V ± 5%, VSS=0V Timing Diagram AC Test Input/Output WaveformPin Count Package Size OTP MCUPackage Type EM78P311SxY
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