Manual

High-Speed Microcontroller User’s Guide
Rev: 062210 21 of 176
Table 4-E. DS83C520/DS87C520 SFR Locations
REGISTER BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 ADDRESS
P0 P0.7 P0.6 P0.5 P0.4 P0.3 P0.2 P0.1 P0.0 80h
SP SP.7 SP.6 SP.5 SP.4 SP.3 SP.2 SP.1 SP.0 81h
DPL DPL.7 DPL.6 DPL.5 DPL.4 DPL.3 DPL.2 DPL.1 DPL.0 82h
DPH DPH.7 DPH.6 DPH.5 DPH.4 DPH.3 DPH.2 DPH.1 DPH.0 83h
DPL1 DPL1.7 DPL1.6 DPL1.5 DPL1.4 DPL1.3 DPL1.2 DPL1.1 DL1H.0 84h
DPH1 DPH1.7 DPH1.6 DPH1.5 DPH1.4 DPH1.3 DPH1.2 DPH1.1 DPH1.0 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 TL0.7 TL0.6 TL0.5 TL0.4 TL0.3 TL0.2 TL0.1 TL0.0 8Ah
TL1 TL1.7 TL1.6 TL1.5 TL1.4 TL1.3 TL1.2 TL1.1 TL1.0 8Bh
TH0 TH0.7 TH0.6 TH0.5 TH0.4 TH0.3 TH0.2 TH0.1 TH0.0 8Ch
TH1 TH1.7 TH1.6 TH1.5 TH1.4 TH1.3 TH1.2 TH1.1 TH1.0 8Dh
CKCON WD1 WD0 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 XT/RG RGMD RGSL BGS 91h
SCON0 SM0/FE_0 SM1_0 SM2_0 REN_0 TB8_0 RB8_0 TI_0 RI_0 98h
SBUF0 SBUF0.7 SBUF0.6 SBUF0.5 SBUF0.4 SBUF0.3 SBUF0.2 SBUF0.1 SBUF0.0 99h
P2 P2.7 P2.6 P2.5 P2.4 P2.3 P2.2 P2.1 P2.0 A0h
IE EA ES1 ET2 ES0 ET1 EX1 ET0 EX0 A8h
SADDR0 SADDR0.7 SADDR0.6 SADDR0.5 SADDR0.4 SADDR0.3 SADDR0.2 SADDR0.1 SADDR0.0 A 9h
SADDR1 SADDR1.7 SADDR1.6 SADDR1.5 SADDR1.4 SADDR1.3 SADDR1.2 SADDR1.1 SADDR1.0 AAh
P3 P3.7 P3.6 P3.5 P3.4 P3.3 P3.2 P3.1 P3.0 B0h
IP — PS1 PT2 PS0 PT1 PX1 PT0 PX0 B8h
SADEN0 SADEN0.7 SADEN0.6 SADEN0.5 SADEN0.4 SADEN0.3 SADEN0.2 SADEN0.1 SADEN0.0 B9h
SADEN1 SADEN1.7 SADEN1.6 SADEN1.5 SADEN1.4 SADEN1.3 SADEN1.2 SADEN1.1 SADEN1.0 BAh
SCON1 SM0/FE_1 SM1_1 SM2_1 REN_1 TB8_1 RB8_1 TI_1 RI_1 C0h
SBUF1 SBUF1.7 SBUF1.6 SBUF1.5 SBUF1.4 SBUF1.3 SBUF1.2 SBUF1.1 SBUF1.0 C1h
ROMSIZE — — — — — RMS2 RMS1 RMS0 C2h
PMR CD1 CD0 SWB — XTOFF ALEOFF DME1 DME0 C4h
STATUS PIP HIP LIP XTUP SPTA1 SPRA1 SPTA0 SPRA0 C5h
TA TA.7 TA.6 TA.5 TA.4 TA.3 TA.2 TA.1 TA.0 C7h
T2CON TF2 EXF2 RCLK TCLK EXEN2 TR2 C/T 2 CP/R L2 C8h
T2MOD — — — — — — T2OE DCEN C9h
RCAP2L RCAP2L.7 RCAP2L.6 RCAP2L.5 RCAP2L.4 RCAP2L.3 RCAP2L.2 RCAP2L.1 RCAP2L.0 CAh
RCAP2H RCAP2H.7 RCAP2H.6 RCAP2H.5 RCAP2H.4 RCAP2H.3 RCAP2H.2 RCAP2H.1 RCAP2H.0 CBh
TL2 TL2.7 TL2.6 TL2.5 TL2.4 TL2.3 TL2.2 TL2.1 TL2.0 CCh
TH2 TH2.7 TH2.6 TH2.5 TH2.4 TH2.3 TH2.2 TH2.1 TH2.0 CDh
PSW CY AC F0 RS1 RS0 OV F1 P D0h
WDCON SMOD_1 POR EPFI PFI WDIF WTRF EWT RWT D8h
ACC ACC.7 ACC.6 ACC.5 ACC.4 ACC.3 ACC.2 ACC.1 ACC.0 E0h
EIE — — — EWDI EX5 EX4 EX3 EX2 E8h
B B.7 B.6 B.5 B.4 B.3 B.2 B.1 B.0 F0h
EIP — — — PWD1 PX5 PX4 PX3 PX2 F8h
Note: Shaded bits are timed-access protected.