W925EP01 Datasheet, PDF (41/108 Pages) Winbond – 8-BIT CID MICROCONTROLLER

W925EP01/ W925EP01FG
6.3 Initial State of Registers
The following table lists the initial state of registers after different reset functions.
SFR ITEM
RESET INITIAL
VALUE
POR
WDT RESET
SDRAL, SFRAH, CHPCON
00h
00h
00h
SFRFD, TA
ffh
ffh
ffh
SFRCN
3Fh
3Fh
3Fh
ACC, B, STATUS, PSW
00h
00h
00h
SP
07h
07h
07h
RPAGE
00h
00h
00h
P0, P1, P2, P3, P4, P0IO, P1IO, P2IO, P3IO, P4IO
ffh
P5, P6, P7, P5IO, P6IO, P7IO
ffh
ffh
DPL, DPH, DPL1, DPH1, DPS
00h
00h
00h
PCON, TCON, TMOD
00h
00h
00h
TL0, TL1, TH0, TH1
00h
00h
00h
CKCON1, CKCON2, SCON, SCON1, SBUF1,
REGVC
00h
00h
00h
SBUF
******** B
******** B ******** B
EIF, IE, HB, IP, EIE, EIP
00h
00h
00h
P1SR, P1EF, P1H, P2H, P3H, P4H, P5H, P6H, P7H
00h
00h
00h
CIDR, CIDFG, CIDPCR, CIDGD, CIDGA
00h
00h
00h
FSKDR, DTMFDR
******** B
******** B ******** B
DTMFPT, DTMFAT
19h
19h
19h
DTMFG, COMPR, IRC1, IRC2, FSKTC, FSKTB
00h
00h
00h
CASPT, CASAT
0fh
0fh
0fh
PMR
10000xx1B 10000xx1B uuu00xx1B
BG
1ah
1ah
1ah
BGCON
06h
06h
06h
WDCON
0u000uu0B 01000000B 0u0001u0B
x: Un-used
u: unchanged
*: Depend on circuit detection
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Publication Release Date: Apr. 10, 2006
Revision A2