Rainbow Electronics AT89C5132 User Manual
Page 35
35
AT8xC5132
4173A–8051–08/02
Reserved
Notes:
1. SFR registers with least significant nibble address equal to 0 or 8 are bit-addressable.
2. NVERS reset value depends on the silicon version.
3. FCON register is only available in AT89C5132 product.
4. FCON reset value is 00h in case of reset with hardware condition.
5. CKCON reset value depends on the X2B bit (programmed or unprogrammed) in the Hardware Byte.
Table 46. SFR Addresses and Reset Values
0/8
1/9
2/A
3/B
4/C
5/D
6/E
7/F
F8h
UEPINT
0000 0000
DAT16H
XXXX XXXX
NVERS
(2)
1000 0010
FFh
F0h
B
(1)
0000 0000
ADCLK
0000 0000
ADCON
0000 0000
ADDL
0000 0000
ADDH
0000 0000
F7h
E8h
PLLCON
0000 1000
USBCLK
0000 0000
AUDCLK
0000 0000
MMCLK
0000 0000
PLLNDIV
0000 0000
PLLRDIV
0000 0000
EFh
E0h
ACC
(1)
0000 0000
UBYCTLX
0000 0000
MMCON0
0000 0000
MMCON1
0000 0000
MMCON2
0000 0000
MMINT
0000 0011
E7h
D8h
P5
(1)
XXXX 1111
MMDAT
1111 1111
MMCMD
1111 1111
MMSTA
0000 0000
MMMSK
1111 1111
DFh
D0h
PSW
1
0000 0000
FCON
(3)
1111 0000
(4)
UEPCONX
0000 0000
UEPRST
0000 0000
D7h
C8h
UEPSTAX
0000 0000
UEPDATX
0000 0000
CFh
C0h
P4
(1)
1111 1111
UEPIEN
0000 0000
SPCON
0001 0100
SPSTA
0000 0000
SPDAT
XXXX XXXX
USBADDR
1000 0000
UEPNUM
0000 0000
C7h
B8h
IPL0
(1)
X000 0000
SADEN
0000 0000
UFNUML
0000 0000
UFNUMH
0000 0000
USBCON
0000 0000
USBINT
0000 0000
USBIEN
0001 0000
BFh
B0h
P3
(1)
1111 1111
IEN1
0000 0000
IPL1
0000 0000
IPH1
0000 0000
IPH0
X000 0000
B7h
A8h
IEN0
(1)
0000 0000
SADDR
0000 0000
AFh
A0h
P2
(1)
1111 1111
AUXR1
XXXX 00X0
KBCON
0000 1111
KBSTA
0000 0000
WDTRST
XXX XXXX
WDTPRG
XXXX X000
A7h
98h
SCON
0000 0000
SBUF
XXXX XXXX
AUDCON0
0000 1000
AUDCON1
1011 0010
AUDSTA
1100 0000
AUDDAT
1111 1111
9Fh
90h
P1
(1)
1111 1111
BRL
0000 0000
BDRCON
XXX0 0000
SSCON
0000 0000
SSSTA
1111 1000
SSDAT
1111 1111
SSADR
1111 1110
97h
88h
TCON
(1)
0000 0000
TMOD
0000 0000
TL0
0000 0000
TL1
0000 0000
TH0
0000 0000
TH1
0000 0000
AUXR
X000 1101
CKCON
0000 000X
(5)
8Fh
80h
P0
(1)
1111 1111
SP
0000 0111
DPL
0000 0000
DPH
0000 0000
PCON
XXXX 0000
87h
0/8
1/9
2/A
3/B
4/C
5/D
6/E
7/F