Datasheet

&3,
Data Sheet 31 1999-07
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Special Function Registers Overview
The following table lists all SFRs which are implemented in the C161PI in alphabetical
order.
Bit-addressable SFRs are marked with the letter “b” in column “Name”. SFRs within the
Extended SFR-Space (ESFRs) are marked with the letter “E” in column “Physical
Address”. Registers within on-chip X-Peripherals (I²C) are marked with the letter “X” in
column “Physical Address”.
An SFR can be specified via its individual mnemonic name. Depending on the selected
addressing mode, an SFR can be accessed via its physical address (using the Data
Page Pointers), or via its short 8-bit address (without using the Data Page Pointers).
Table 5 C161PI Registers, Ordered by Name
Name Physical
Address
8-Bit
Addr.
Description Reset
Value
ADCIC b FF98
H
CC
H
A/D Converter End of Conversion
Interrupt Control Register
0000
H
ADCON b FFA0
H
D0
H
A/D Converter Control Register 0000
H
ADDAT FEA0
H
50
H
A/D Converter Result Register 0000
H
ADDAT2 F0A0
H
E 50
H
A/D Converter 2 Result Register 0000
H
ADDRSEL1 FE18
H
0C
H
Address Select Register 1 0000
H
ADDRSEL2 FE1A
H
0D
H
Address Select Register 2 0000
H
ADDRSEL3 FE1C
H
0E
H
Address Select Register 3 0000
H
ADDRSEL4 FE1E
H
0F
H
Address Select Register 4 0000
H
ADEIC b FF9A
H
CD
H
A/D Converter Overrun Error Interrupt
Control Register
0000
H
BUSCON0 b FF0C
H
86
H
Bus Configuration Register 0 0000
H
BUSCON1 b FF14
H
8A
H
Bus Configuration Register 1 0000
H
BUSCON2 b FF16
H
8B
H
Bus Configuration Register 2 0000
H
BUSCON3 b FF18
H
8C
H
Bus Configuration Register 3 0000
H
BUSCON4 b FF1A
H
8D
H
Bus Configuration Register 4 0000
H
CAPREL FE4A
H
25
H
GPT2 Capture/Reload Register 0000
H
CC8IC b FF88
H
C4
H
External Interrupt 0 Control Register 0000
H
CC9IC b FF8A
H
C5
H
External Interrupt 1 Control Register 0000
H
CC10IC b FF8C
H
C6
H
External Interrupt 2 Control Register 0000
H
CC11IC b FF8E
H
C7
H
External Interrupt 3 Control Register 0000
H