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Special function registers
PRELIMINARY V1.8
7
7.
Special function registers
The SS1102C special function registers (SFR) are accessed with direct memory
addressing in the memory space from 80H to FFH. The table below shows the location
of each register. The description of the register functions are in the respective peripheral
block descriptions and the architectural overview section.
TABLE 2.
Special Function Registers Description
Lo \ Hi
8
9
ABCD
E
F
0
P0
P1
P2
P3
P4
PSW
ACC
B
1
SP
WDCR
TBCR
SSTMCR
CT1CR
CT2CR
SPI1CR
2
DPL
WDCNT
TBCNT
CT1CNTL
CT2CNTL
SPI1DAT
3
DPH
TBDAT
CT1CNTH
CT2CNTH
SPI1SR
4
LBDCR
CT1DATL
CT2DATL
5
CMPRCR
CT1DATH
CT2DATH
6
SREL
XICR0
CT1SR
7
-----
PSCR
ISE0
ISE1
ISE2
8
-----
-----
IE
IP
0:IEIS
1:UW2
INT0
INT1
INT2
9
-----
-----
P0NOP
P1NOP
P2NOP
P3NOP
P4NOP
A
-----
PCR
P0IO
P1IO
P2IO
P3IO
P4IO
B
-----
ZCR
P0RD
P1RD
P2RD
P3RD
P4RD
C
-----
D
-----
E
0: CIL
1: CIL
0:LCK
1:TXSHH
0:TXSW/
RXSW
1:RXSHH
0:PNA0
1:PNC0
0:PNA1
1:PNC1
0:PNA2
1:PNC2
0:PNA3
1:PNC3
0:RDI
1:UW1
F
0: CIH
1: UW0
0: -
1:TXSHL
0:SN
1:RXSHL
0:PNB0
1:PND0
0:PNB1
1:PND1
0:PNB2
1:PND2
0:PNB3
1:PND3
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