AT80C51RA2 データシートの表示（PDF） - Atmel Corporation

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AT80C51RA2

High Performance 8-bit Microcontrollers

Atmel Corporation 

4. SFR Mapping

The Special Function Registers (SFRs) of the TS80C51Rx2 fall into the following categories:

• C51 core registers: ACC, B, DPH, DPL, PSW, SP, AUXR1

• I/O port registers: P0, P1, P2, P3, P4, P5

• Timer registers: T2CON, T2MOD, TCON, TH0, TH1, TH2, TMOD, TL0, TL1, TL2, RCAP2L,

RCAP2H

• Serial I/O port registers: SADDR, SADEN, SBUF, SCON

• Power and clock control registers: PCON

• HDW Watchdog Timer Reset: WDTRST, WDTPRG

• PCA registers: CL, CH, CCAPiL, CCAPiH, CCON, CMOD, CCAPMi

• Interrupt system registers: IE, IP, IPH

• Others: AUXR, CKCON

4 AT/TS8xC51Rx2

4188F–8051–01/08

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