C161U
The Register Set
Preliminary Data Sheet
428
02.2000
PRELIMINARY
PRE
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22.4
Special Function Registers ordered by Name
The following table lists all SFRs which are implemented in the C161U ordered by their name. Bit-
addressable SFRs are marked with the letter “b” in column “Type”.
SFRs within the Extended SFR-Space (ESFRs) are marked with the letter “E” in column “Type”.
Table 91
Registers ordered by Name
Register
Name
Physical
Addr
Type
8-bit
Addr
Description
Reset
Value
ABENDIC
F18C
H
ESFR-b
C6
H
ASC Autobaud End Interrupt Control Register
0000
H
ABS0CON
FEF8
H
SFR
7C
H
ASC Autobaud Control Register
0000
H
ABSTAT
FEFE
H
SFR
7F
H
ASC Autobaud Status Register
0000
H
ABSTIC
F194
H
ESFR-b
CA
H
ASC Autobaud Start Interrupt Control Register
0000
H
ADDRSEL1
FE18
H
SFR
0C
H
Address Select Register 1
0000
H
ADDRSEL2
FE1A
H
SFR
0D
H
Address Select Register 2
0000
H
ADDRSEL3
FE1C
H
SFR
0E
H
Address Select Register 3
0000
H
ADDRSEL4
FE1E
H
SFR
0F
H
Address Select Register 4
0000
H
BUSCON0
FF0C
H
SFR-b
86
H
Bus Configuration Register 0
0000
H
BUSCON1
FF14
H
SFR-b
8A
H
Bus Configuration Register 1
0000
H
BUSCON2
FF16
H
SFR-b
8B
H
Bus Configuration Register 2
0000
H
BUSCON3
FF18
H
SFR-b
8C
H
Bus Configuration Register 3
0000
H
BUSCON4
FF1A
H
SFR-b
8D
H
Bus Configuration Register 4
0000
H
CAPREL
FE4A
H
SFR
25
H
GPT1/2 Capture / Reload Register
0000
H
CLISNC
FFA8
H
SFR-b
D4
H
The channel link interrupt subnode register
0000
H
CP
FE10
H
SFR
08
H
CPU Context Pointer Register
FC00
H
CRIC
FF6A
H
SFR-b
B5
H
GPT2 CAPREL Interrupt Control Register
0000
H
CSP
FE08
H
SFR
04
H
CPU Code Segment Pointer Register (8 bits)
0000
H
DP0H
F102
H
ESFR-b
81
H
P0H Direction Control Register
00
H
DP0L
F100
H
ESFR-b
80
H
P0L Direction Control Register
00
H
DP1H
F106
H
ESFR-b
83
H
P1H Direction Control Register
00
H
DP1L
F104
H
ESFR-b
82
H
P1L Direction Control Register
00
H
DP2
FFC2
H
SFR-b
E1
H
Port 2 Direction Control Register
0000
H
DP3
FFC6
H
SFR-b
E3
H
Port 3 Direction Control Register
0000
H
DP4
FFCA
H
SFR-b
E5
H
Port 4 Direction Control Register
00
H
DP6
FFCE
H
SFR-b
E7
H
Port 6 Direction Control Register
00
H
DPP0
FE00
H
SFR
00
H
CPU Data Page Pointer 0 Register (10 bits)
0000
H
DPP1
FE02
H
SFR
01
H
CPU Data Page Pointer 1 Register (10 bits)
0001
H
DPP2
FE04
H
SFR
02
H
CPU Data Page Pointer 2 Register (10 bits)
0002
H
DPP3
FE06
H
SFR
03
H
CPU Data Page Pointer 3 Register (10 bits)
0003
H