Kawasaki 80C152, KS152JB, 80C51 technical specifications Baud Rates

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KS152JB Universal Communications Controller Technical Specifications

Timer 1

 

 

 

 

 

 

 

Overflow

 

 

 

 

 

 

 

 

 

 

 

 

 

Transmit Shift Register

 

2

 

 

 

 

1

STOP

SOUT

TxD

 

 

 

 

 

 

 

 

 

Internal

TB8

D8

 

 

 

 

 

 

 

PARIN

 

 

SMOD

 

 

Data Bus

0

START

 

 

 

 

 

 

 

 

0

1

Write to

 

 

 

LOAD

 

 

 

 

SBUF

 

 

 

 

 

 

 

 

 

 

CLOCK

 

 

 

 

 

 

 

 

 

 

 

 

 

TX START

TX SHIFT

 

 

 

 

 

 

16

TX CLOCK

TI

 

 

 

 

 

 

 

SERIAL

 

 

Serial Interrupt

 

 

 

CONTROLLER

 

 

 

 

 

 

16

RX CLOCK

RI

 

 

 

 

 

 

 

LOAD

 

 

 

 

 

 

 

 

SBUF

 

 

 

 

 

 

1-TO-0

RX

RX SHIFT

 

 

 

 

 

 

DETECTOR

START

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLOCK

 

Internal

 

 

 

 

 

 

PAROUT

SBUF

 

 

 

BIT

 

 

Data Bus

 

RxD

 

 

 

SIN

 

 

 

 

DETECTOR

 

 

 

 

 

 

 

D8

RB8

 

 

 

 

 

 

 

Read

 

 

 

 

 

 

 

 

 

 

 

 

 

Receive Shift Register

 

SBUF

Local Serial Port Mode 3

Baud Rates

In Mode 0 the baud rate is fixed at 1/12 of the oscillator frequency.

In Mode 2 the baud rate depends on the value of bit SMOD in PCON SFR. If SMOD is 0 then the baud rate is 1/64 of the oscillator frequency. If the bit is set to 1, then the baud rate is 1/32 of the

oscillator frequency.

Mode 2 Baud Rate = 2( SMOD - 6 ) X Oscillator Frequency

The baud rates in Mode 1 and 3 are determined by the overflow rates of Timer 1. Using Timer 1 to generate baud rates.

When Timer 1 is used as a baud rate generator, the baud rates in Modes 1 and 3 are determined by the Timer 1 overflow rate and the value of SMOD.

Modes 1 and 3 baud rate = 2( SMOD - 5 ) X Timer 1 overflow rate

The Timer 1 interrupt should be disabled in this mode. The timer itself can be configured as either “timer” or “counter”, in any of its 3 operating modes. Commonly, Timer 1 is configured as a timer

Kawasaki LSI USA, Inc.

Page 28 of 120

Ver. 0.9 KS152JB2

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Contents Introduction Technical Specifications Pin Description PIN DescriptionName Description Port Pin Name Alternate FunctionXTAL2 XTAL1RST ALE PsenEben EpsenSpecial function Registers SFR map for the cpuReset Timing Reset Values of the SFRs Configurations SconSbuf Indeterminate Tmod PconPort 0 I/O Pad Port 2 I/O Pad Port bit I/O PadsPorts 4,5 Program Psen EpsenComments Fetch viaTIMER/COUNTERS Tmod Timer/Counter Mode Control RegisterTcon Timer/Counter Control Register ModeTimer/Counter in Mode IE Interrupt Enable Register Timer/Counter 0 in ModeInterrupts Priority Level Structure Egste EDMA1 Egstv EDMA0 Egsre Egsrv Pgste PDMA1 Pgstv PDMA0 Pgsre PgsrvPX0 EX0Pgsrv Egsrv 2BHPDMA1 EDMA1PT1 ET1 1BHKawasaki LSI USA, Inc Ver .9 KS152JB2 Status of the External Pins during Idle and Power Down Power Down and IdleALE Psen Pcon Power Control Register Smod IDLLocal Serial Channel Local Serial Port Mode ControllerSerial Port Mode Mode Load Sbuf Baud Rates Smod Timer 1 generated commonly used Baud ratesMHZ JNB SINGLE-STEP OperationReti Kawasaki LSI USA Inc Global Serial Channel Introduction11/IDLE CRC None DC JAM CRCCsma Sdlc 11/IDLEExternal clock Internal clock Control cpu Control dma Raw Receive Raw Transmit CSMA/CD Frame Format CSMA/CD OverviewPreamble BOF Address Info CRC EOF Kawasaki LSI USA, Inc Ver .9 KS152JB2 23 24 Interframe Space CSMA/CD Data Encoding Manchester Encoding BIT TimeCollision Detection Jitter ToleranceMissing 0-to-1 Transition Narrow PulsesUnexpected 1-to-0 Transition Resolution of Collisions GSC InactiveResponse to a Detected Collision What the GSC was doing TfifoDCR BackoffAlgorithm Prbs Tcdcnt Load Bkoff Slot Clock Myslot Random BackoffBKOFF= Myslot Deterministic Backoff Hardware Based Acknowledge Kawasaki LSI USA, Inc Ver .9 KS152JB2 Sdlc Frame Format BOF Address Control Info CRC EOFKawasaki LSI USA, Inc Ver .9 KS152JB2 Nrzi BIT Time Data EncodingBIT STUFFING/STRIPPING Line Idle Sending Abort CharacterAcknowledgement PRIMARY/SECONDARY Stations Point-to-point NetworkMulti-Drop Network Ring NetworkUsing a Preamble in Sdlc HDLC/SDLC ComparisonSdlc Hdlc User Defined ProtocolsLine Discipline Planning for Network Changes and ExpansionsDMA Servicing of GSC Channels Kawasaki LSI USA, Inc Ver .9 KS152JB2 Baud Rate Initialization Test Modes External Driver InterfaceJitter Receive Local Value Manchester Encoding BIT Time Receive Sampling Rate ReceivedBIT Time Received Transmit WaveformsReceiver Clock Recovery CSMA/CD Clock RecoveryDetermining Receiver Errors External ClockingRcbat Crce AddressingDetermining Line Discipline 2 CPU/DMA Control of the GSCCollisions and Backoff What the GSC was doing Response GSC Register Descriptions Successful Ending of Transmissions and ReceptionsGMOD84H Xtclk PL1 PL0 PL1 PL0 Length BitsKawasaki LSI USA, Inc Ver .9 KS152JB2 DCJ DCR SA5 SA4 SA3 SA2 SA1 SA0 ARB REQ Garen Xrclk Gfien IDLRcabt Crce RDN Rfne Gren Haben Kawasaki LSI USA, Inc Ver .9 KS152JB2 LNI Noack Tcdt TDN Tfnf TEN DMA Kawasaki LSI USA, Inc Ver .9 KS152JB2 DMA Operation DMA with the 80C152DMA Registers Alternate Cycle Mode Burst ModeDAS IDA SAS ISASerial Port Demand Mode External Demand ModeTiming Diagrams 12 OSC.PERIODS ALE Psen P1 Inst FloatPCH P2 SFR DMA Cycle Resume Program Execution DMA Transfer from Internal Memory to Internal MemoryDMA Cycle 12 OSC. Periods Resume Program Execution ALE Psen 12 OSC. Periods ALE Psen Inst DMA Data OUT PCL Inst PCHDMA Cycle Resume Program Execution Arbiter Mode Request ModeHold/Hold Acknowledge Using the HOLD/HLDA Acknowledge ARB REQInternal Logic of the Arbiter ALE ARB If Hlda = ALE AEQ ALE REQDmxrq Internal Logic of the Requester DMA Arbitration Kawasaki LSI USA, Inc.oup, Inc Ver .9 KS152JB2 Kawasaki LSI USA, Inc Ver .9 KS152JB2 Kawasaki LSI USA, Inc Ver .9 KS152JB2 DMA Arbitration with Hold/Hold Ack Summary of DMA Control Bits DAS IDA SAS ISA DoneInterrupt Structure IE0 TI+RI ET1 EX1 ET0 EX0PT1 PX1 PT0 PX0 IPN1GSC Transmitter Error Conditions Transmit Error Flags Logic for Clearing TEN, Setting TDNGSC Receiver Error Conditions Glossary Kawasaki LSI USA, Inc Ver .9 KS152JB2 DCON0/1 092H,093H Xtclk PL1 PL0 Kawasaki LSI USA, Inc 102 Ver .9 KS152JB2 Kawasaki LSI USA, Inc 103 Ver .9 KS152JB2 PT1 PX1 PT0 EX0 Myslot 0F5H DCJ DCR SA5 SA4 SA3 SA2 SA1 SA0 Smod ARB REQ Garen Xrclk Gfien IDL OVR Rcabt Crce RDN Rfne Gren Haben Kawasaki LSI USA, Inc 108 Ver .9 KS152JB2 SM0 SM1 SM2 REN TB8 RB8 TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0Gate Kawasaki LSI USA, Inc 111 Ver .9 KS152JB2 Port Stack PointerData Pointer LOW DPL.7 DPL.6 DPL5 DPL.4 DPL.3 DPL.2 DPL.1 DPL.0Timer Control Data Pointer HighDPH.7 DPH.6 DPH.5 DPH.4 DPH.3 DPH.2 DPH.1 DPH.0 DPHTimer Mode Control Gate TimerTimer 0 LSB Timer 1 LSBTimer 0 MSB Timer 1 MSBSerial Port Control SM0Serial Data Buffer SBUF.7Program Status Word RS1 RS0Accumulator ACC.7 ACC.6 ACC.5 ACC.4 ACC.3 ACC.2 ACC.1 ACC.0Kawasaki LSI USA, Inc 119 Ver .9 KS152JB2 Kawasaki LSI USA, Inc 120 Ver .9 KS152JB2
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