Kawasaki LSI USA, Inc Ver .9 KS152JB2 | Kawasaki 80C152, 80C51

KS152JB Universal Communications Controller Technical Specifications

AL - Address Length, see GMOD.

AMSK0,1 (0D5H, 0E5H) - Address Match Mask 0,1 - Identiﬁes which bits in ADR0,1 are “don’t care” bits. Setting a bit to 1 in AMSK0,1 identiﬁes the corresponding bit in ADDR0,1 as not to be examined when comparing address.

BAUD - (94H) Contains the programmable value for the baud rate generator for the GSC. The baud rate will equal (fosc) / ((BAUD+1) x 8).

BCRL0,1 (0E2H, 0F2H) - Byte Count Register Low 0,1 - Contains the lower byte of the byte count. Used during the DMA transfer to identify to the DMA channels when the transfer is com- plete.

BCRH0,1 (0E3H, 0F3H) - Byte Count Register High 0,1 - Contains the upper byte of the byte count.

BKOFF (0C4H) - Backoff Timer - The Backoff timer is an eight bit count-down timer with a clock period equal to one slot time. The Backoff time is used in CSMA/CD collision resolution algorithm.

BOF - Beginning of Frame Flag - A term commonly used when dealing packetized data. Signiﬁes the beginning of a frame.

CRC - Cyclic Redundancy Check - An error checking routine that mathematically manipulates a value depending on the incoming data. The purpose is to identify when a frame has been received in error.

CRCE - CRC Error, See RSTAT.

CSMA/CD - Stands for Carrier Sense, Multiple Access, with Collision Detection.

CT- CRC Type, see GMOD.

DARL0/1 (0C2H, 0D2H) - Destination Address Register Low 0/1 - Contains the lower byte of the destinations’ address when performing DMA transfers.

DARH0/1 (0C3H, 0D3H) - Destination Address Register Low 0/1 - Contains the upper byte of the destinations’ address when performing DMA transfers.

DAS - Destination Address Space, see DCON.

DCJ - D.C.Jam, see MYSLOT.

Kawasaki LSI USA, Inc.

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Ver. 0.9 KS152JB2

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Kawasaki 80C152, 80C51 technical specifications Kawasaki LSI USA, Inc Ver .9 KS152JB2

Contents

Introduction Technical Specifications Pin Name Alternate Function Pin DescriptionPIN Description Name Description Port XTAL1 XTAL2RST Epsen ALEPsen Eben SFR map for the cpu Special function Registers Reset Timing Reset Values of the SFRs Pcon ConfigurationsScon Sbuf Indeterminate Tmod Port bit I/O Pads Port 0 I/O Pad Port 2 I/O Pad Ports 4,5 Fetch via ProgramPsen Epsen Comments Tmod Timer/Counter Mode Control Register TIMER/COUNTERS Mode Tcon Timer/Counter Control Register Timer/Counter in Mode Timer/Counter 0 in Mode IE Interrupt Enable RegisterInterrupts Priority Level Structure Pgste PDMA1 Pgstv PDMA0 Pgsre Pgsrv Egste EDMA1 Egstv EDMA0 Egsre Egsrv Egsrv 2BH PX0EX0 Pgsrv ET1 1BH PDMA1EDMA1 PT1 Kawasaki LSI USA, Inc Ver .9 KS152JB2 Power Down and Idle Status of the External Pins during Idle and Power DownALE Psen Smod IDL Pcon Power Control Register Local Serial Channel Controller Local Serial Port Mode Serial Port Mode Mode Load Sbuf Baud Rates Timer 1 generated commonly used Baud rates SmodMHZ SINGLE-STEP Operation JNBReti Kawasaki LSI USA Inc Introduction Global Serial Channel DC JAM CRC 11/IDLE CRC None 11/IDLE Csma Sdlc External clock Internal clock Control cpu Control dma Raw Receive Raw Transmit CSMA/CD Overview CSMA/CD Frame FormatPreamble BOF Address Info CRC EOF Kawasaki LSI USA, Inc Ver .9 KS152JB2 23 24 Interframe Space Jitter Tolerance CSMA/CD Data EncodingManchester Encoding BIT Time Collision Detection Narrow Pulses Missing 0-to-1 TransitionUnexpected 1-to-0 Transition Tfifo Resolution of CollisionsGSC Inactive Response to a Detected Collision What the GSC was doing Backoff DCRAlgorithm Random Backoff Prbs Tcdcnt Load Bkoff Slot Clock MyslotBKOFF= Myslot Deterministic Backoff Hardware Based Acknowledge Kawasaki LSI USA, Inc Ver .9 KS152JB2 BOF Address Control Info CRC EOF Sdlc Frame Format Kawasaki LSI USA, Inc Ver .9 KS152JB2 Data Encoding Nrzi BIT TimeBIT STUFFING/STRIPPING Sending Abort Character Line IdleAcknowledgement Ring Network PRIMARY/SECONDARY StationsPoint-to-point Network Multi-Drop Network User Deﬁned Protocols Using a Preamble in SdlcHDLC/SDLC Comparison Sdlc Hdlc Planning for Network Changes and Expansions Line Discipline DMA Servicing of GSC Channels Kawasaki LSI USA, Inc Ver .9 KS152JB2 Baud Rate Initialization External Driver Interface Test Modes Jitter Receive Transmit Waveforms Local Value Manchester Encoding BIT TimeReceive Sampling Rate Received BIT Time Received CSMA/CD Clock Recovery Receiver Clock Recovery Addressing Determining Receiver ErrorsExternal Clocking Rcbat Crce 2 CPU/DMA Control of the GSC Determining Line Discipline Collisions and Backoff What the GSC was doing Response Successful Ending of Transmissions and Receptions GSC Register Descriptions PL1 PL0 Length Bits GMOD84H Xtclk PL1 PL0 Kawasaki LSI USA, Inc Ver .9 KS152JB2 ARB REQ Garen Xrclk Gfien IDL DCJ DCR SA5 SA4 SA3 SA2 SA1 SA0 Rcabt 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 with the 80C152 DMA Operation DMA Registers SAS ISA Alternate Cycle ModeBurst Mode DAS IDA External Demand Mode Serial Port Demand Mode DMA Transfer from Internal Memory to Internal Memory Timing Diagrams12 OSC.PERIODS ALE Psen P1 Inst Float PCH P2 SFR DMA Cycle Resume Program Execution 12 OSC. Periods ALE Psen Inst DMA Data OUT PCL Inst PCH DMA Cycle 12 OSC. Periods Resume Program Execution ALE PsenDMA Cycle Resume Program Execution Request Mode Arbiter ModeHold/Hold Acknowledge ARB REQ Using the HOLD/HLDA Acknowledge ALE ARB If Hlda = ALE AEQ ALE REQ Internal Logic of the ArbiterDmxrq 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 DAS IDA SAS ISA Done Summary of DMA Control Bits Interrupt Structure IE0 ET1 EX1 ET0 EX0 TI+RI IPN1 PT1 PX1 PT0 PX0 Transmit Error Flags Logic for Clearing TEN, Setting TDN GSC Transmitter Error Conditions GSC 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 TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 SM0 SM1 SM2 REN TB8 RB8 Gate Kawasaki LSI USA, Inc 111 Ver .9 KS152JB2 DPL.7 DPL.6 DPL5 DPL.4 DPL.3 DPL.2 DPL.1 DPL.0 PortStack Pointer Data Pointer LOW DPH Timer ControlData Pointer High DPH.7 DPH.6 DPH.5 DPH.4 DPH.3 DPH.2 DPH.1 DPH.0 Timer 1 LSB Timer Mode ControlGate Timer Timer 0 LSB Timer 1 MSB Timer 0 MSB SBUF.7 Serial Port ControlSM0 Serial Data Buffer RS1 RS0 Program Status Word ACC.7 ACC.6 ACC.5 ACC.4 ACC.3 ACC.2 ACC.1 ACC.0 Accumulator Kawasaki LSI USA, Inc 119 Ver .9 KS152JB2 Kawasaki LSI USA, Inc 120 Ver .9 KS152JB2