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DS87C323-WCG Datasheet(PDF) 10 Page - Dallas Semiconductor |
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DS87C323-WCG Datasheet(HTML) 10 Page - Dallas Semiconductor |
10 / 175 page High-Speed Microcontroller User’s Guide 10 of 175 SPECIAL FUNCTION REGISTERS The High-Speed Microcontroller, like the 8051, uses Special Function Registers (SFRs) to control peripherals and modes. In many cases, an SFR will control individual functions or report status on individual functions. The SFRs reside in register locations 80h-FFh and are reached using direct addressing. SFRs that end in 0 or 8 are bit addressable. All standard SFR locations from the original 8051 are duplicated in the High-Speed Microcontroller, with several additions. Following tables illustrate the locations of the SFRs for various devices. Following each tables a description of the default reset conditions of all SFR bits. The following section is a detailed description of each Special Function Register. DS80C310 SPECIAL FUNCTION REGISTER LOCATIONS Table 4-1 REGISTER BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 ADDRESS SP 81h DPL 82h DPH 83h DPL1 84h DPH1 85h DPS 0 0 0 0 0 0 0 SEL 86h PCON SMOD-0 SMOD0 - - GF1 GF0 STOP IDLE 87h TCON TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 88h TMOD GATE C/ T M1 M0 GATE C/ T M1 M0 89h TL0 8Ah TL1 8Bh TH0 8Ch TH1 8Dh CKCON - - T2M T1M T0M MD2 MD1 MD0 8Eh P1 P1.7 P1.6 P1.5 P1.4 P1.3 P1.2 P1.1 P1.0 90h EXIF IE5 IE4 IE3 IE2 - - - - 91h SCON0 SM0/FE_0 SM1_0 SM2_0 REN_0 TB8_0 RB8_0 TI_0 RI_0 98h SBUF0 99h P2 P2.7 P2.6 P2.5 P2.4 P2.3 P2.2 P2.1 P2.0 A0h IE EA - ET2 ES0 ET1 EX1 ET0 EX0 A8h SADDR0 A9h P3 P3.7 P3.6 P3.5 P3.4 P3.3 P3.2 P3.1 P3.0 B0h IP - - PT2 PS0 PT1 PX1 PT0 PX0 B8h SADEN0 B9h STATUS 0 HIP LIP 1 1 1 1 1 C5h T2CON TF2 EXF2 RCLK TCLK EXEN2 TR2 C/ T2 CP/ RL2 C8h T2MOD - - - - - - T2OE DCEN C9h RCAP2L CAh RCAP2H CBh TL2 CCh TH2 CDh PSW CY AC F0 RS1 RS0 OV F1 P D0h WDCON - POR - - - - - - D8h ACC E0h EIE - - - - EX5 EX4 EX3 EX2 E8h B F0h EIP - - - - PX5 PX4 PX3 PX2 F8h |
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