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T89C51AC2-RLSI-M 数据表(PDF) 10 Page - ATMEL Corporation |
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T89C51AC2-RLSI-M 数据表(HTML) 10 Page - ATMEL Corporation |
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10 / 117 page  10 Draft.A - March 30, 2001 Preview - Confidential T89C51AC2 5. SFR Mapping The Special Function Registers (SFRs) of the T89C51AC2 fall into the following categories: Table 3. C51 Core SFRs Table 4. I/O Port SFRs Table 5. Timers SFRs Table 6. Serial I/O Port SFRs Mnemonic Add Name 7 6 5 4 3 2 1 0 ACC E0h Accumulator B F0h B Register PSW D0h Program Status Word SP 81h Stack Pointer LSB of SPX DPL 82h Data Pointer Low byte LSB of DPTR DPH 83h Data Pointer High byte MSB of DPTR Mnemonic Add Name 7 6 5 4 3 2 1 0 P0 80h Port 0 P1 90h Port 1 P2 A0h Port 2 P3 B0h Port 3 P4 C0h Port 4 (x2) Mnemonic Add Name 7 6 5 4 3 2 1 0 TH0 8Ch Timer/Counter 0 High byte TL0 8Ah Timer/Counter 0 Low byte TH1 8Dh Timer/Counter 1 High byte TL1 8Bh Timer/Counter 1 Low byte TH2 CDh Timer/Counter 2 High byte TL2 CCh Timer/Counter 2 Low byte TCON 88h Timer/Counter 0 and 1 control TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 TMOD 89h Timer/Counter 0 and 1 Modes GATE1 C/T1# M11 M01 GATE0 C/T0# M10 M00 T2CON C8h Timer/Counter 2 control TF2 EXF2 RCLK TCLK EXEN2 TR2 C/T2# CP/RL2# T2MOD C9h Timer/Counter 2 Mode - - - - - - T2OE DCEN RCAP2H CBh Timer/Counter 2 Reload/Capture High byte RCAP2L CAh Timer/Counter 2 Reload/Capture Low byte WDTRST A6h WatchDog Timer Reset WDTPRG A7h WatchDog Timer Program - - - - - S2S1S0 Mnemonic Add Name 7 6 5 4 3 2 1 0 SCON 98h Serial Control FE/SM0 SM1 SM2 REN TB8 RB8 TI RI SBUF 99h Serial Data Buffer SADEN B9h Slave Address Mask |
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