Maxim Integrated High-Speed Microcontroller - Manual (Page 22)

High-Speed Microcontroller User’s Guide
Rev: 062210 22 of 176
Table 4-F. DS83C520/DS87C520 SFR Reset Values
REGISTER BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 ADDRESS
P0 1 1 1 1 1 1 1 1 80h
SP 0 0 0 0 0 1 1 1 81h
DPL 0 0 0 0 0 0 0 0 82h
DPH 0 0 0 0 0 0 0 0 83h
DPL1 0 0 0 0 0 0 0 0 84h
DPH1 0 0 0 0 0 0 0 0 85h
DPS 0 0 0 0 0 0 0 0 86h
PCON 0 0 — — 0 0 0 0 87h
TCON 0 0 0 0 0 0 0 0 88h
TMOD 0 0 0 0 0 0 0 0 89h
TL0 0 0 0 0 0 0 0 0 8Ah
TL1 0 0 0 0 0 0 0 0 8Bh
TH0 0 0 0 0 0 0 0 0 8Ch
TH1 0 0 0 0 0 0 0 0 8Dh
CKCON 0 0 0 0 0 0 0 1 8Eh
P1 1 1 1 1 1 1 1 1 90h
EXIF 0 0 0 0 SPECIAL SPECIAL SPECIAL 0 91h
SCON0 0 0 0 0 0 0 0 0 98h
SBUF0 0 0 0 0 0 0 0 0 99h
P2 1 1 1 1 1 1 1 1 A0h
IE 0 0 0 0 0 0 0 0 A8h
SADDR0 0 0 0 0 0 0 0 0 A9h
SADDR1 0 0 0 0 0 0 0 0 AAh
P3 1 1 1 1 1 1 1 1 B0h
IP — 0 0 0 0 0 0 0 B8h
SADEN0 0 0 0 0 0 0 0 0 B9h
SADEN1 0 0 0 0 0 0 0 0 BAh
SCON1 0 0 0 0 0 0 0 0 C0h
SBUF1 0 0 0 0 0 0 0 0 C1h
ROMSIZE — — — — — 1 0 1 C2h
PMR 0 1 0 — 0 0 0 0 C4h
STATUS 0 0 0 SPECIAL 0 0 0 0 C5h
TA 1 1 1 1 1 1 1 1 C7h
T2CON 0 0 0 0 0 0 0 0 C8h
T2MOD — — — — — — 0 0 C9h
RCAP2L 0 0 0 0 0 0 0 0 CAh
RCAP2H 0 0 0 0 0 0 0 0 CBh
TL2 0 0 0 0 0 0 0 0 CCh
TH2 0 0 0 0 0 0 0 0 CDh
PSW 0 0 0 0 0 0 0 0 D0h
WDCON 0 SPECIAL 0 SPECIAL 0 SPECIAL SPECIAL 0 D8h
ACC 0 0 0 0 0 0 0 0 E0h
EIE — — — 0 0 0 0 0 E8h
B 0 0 0 0 0 0 0 0 F0h
EIP — — — 0 0 0 0 0 F8h