Rainbow-electronics T89C51IC2 Manual do Utilizador descarregar pdf (Página 3)

T89C51IC2

Rev. C – 3-Dec-01

SFR Mapping

The Special Function Registers (SFRs) of the T89C51IC2 fall into the following

categories:

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

• I/O port registers: P0, P1, P2, P3, PI2

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

RCAP2L, RCAP2H

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

• PCA (Programmable Counter Array) registers: CCON, CCAPMx, CL, CH, CCAPxH,

CCAPxL(x:0to4)

• Power and clock control registers: PCON

• Hardware Watchdog Timer registers: WDTRST, WDTPRG

• Interrupt system registers: IE0, IPL0, IPH0, IE1, IPL1, IPH1

• Keyboard Interface registers: KBE, KBF, KBLS

• SPI registers: SPCON, SPSTR, SPDAT

• I2C Interface registers: SSCON, SSCS, SSDAT, SSADR

• BRG (Baud Rate Generator) registers: BRL, BDRCON

• Flash register: FCON

• Clock Prescaler register: CKRL

• 32Khz Sub Clock Oscillator registers: CKSEL, OSSCON

• Others: AUXR, AUXR1, CKCON0, CKCON1

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