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AT89C5122D-RDRUM 数据表(PDF) 34 Page - ATMEL Corporation |
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AT89C5122D-RDRUM 数据表(HTML) 34 Page - ATMEL Corporation |
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34 / 208 page  34 AT83R5122, AT8xC5122/23 4202F–SCR–07/2008 SFR’s Description Note: 1. Only for AT8xC5122 Note: 1. Only for AT8xC5122 Table 10. C51 Core SFRs Mnemonic Add Name 76543210 ACC E0h Accumulator ACC B F0h B Register B PSW D0h Program Status Word CY AC F0 RS1 RS0 OV F1 P SP 81h Stack Pointer SP DPL 82h Data Pointer Low byte (LSB of DPTR) DPL DPH 83h Data Pointer High byte (MSB of DPTR) DPH Table 11. Clock SFRs Mnemonic Add Name 76 5 43210 PCON 87h Power Controller SMOD1 SMOD0 POF GF1 GF0 PD IDL CKCON0 8Fh Clock Controller 0 WDX2 SIX2 T1X2 T0X2 X2 CKCON1 AFh Clock Controller 1 SPIX2 CKSEL 85h Clock Selection CKS CKRL 97h Clock Reload Register CKREL 3-0 PLLCON A3h PLL Controller Register EXT48 PLLEN PLOCK PLLDIV A4h PLL Divider register R3-0 N3-0 AUXR 8Eh Auxiliary Register 0 DPU XRS0 EXTRAM A0 AUXR1 A2h Auxiliary Register 1 ENBOOT(1) GF3 DPS RCON (1) D1h CRAM memory Configuration RPS Table 12. I/O Port SFRs Mnemonic Add Name 7 6 5 4 3 2 1 0 P0(1) 80h Port 0 P0 P1 90h Port 1 P1 P2(1) A0h Port 2 P2 P3 B0h Port 3 P3 P4(1) C0h Port 4 P4 P5 E8h Port 5 P5 (only P5.0 for AT8xC5122) PMOD0 91h Port Mode Register 0 P3C1 P3C0 P2C1(1) P2C0(1) CPRESRES - P0C1(1) P0C0(1) PMOD1 84h Port Mode Register 1 P5HC1(1) P5HC0(1) P5MC1(1) P5MC0(1) P5LC1 P5LC0 P4C1(1) P4C0(1) |
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