Z8F0113HJ005EG Datasheet, PDF (144/245 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F0823 Series
Product Specification
129
ADC Control/Status Register 1
The second ADC Control Register contains the voltage reference level selection bit.
Table 75. ADC Control/Status Register 1 (ADCCTL1)
Bit
7
6
5
4
3
2
1
0
Field
REFSELH
Reserved
RESET
1
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Address
F71H
Bit
[7]
REFSELH
[6:0]
Description
Voltage Reference Level Select High Bit
In conjunction with the Low bit (REFSELL) in ADC Control Register 0, this bit determines
the level of the internal voltage reference; the following details the effects of {REFSELH,
REFSELL}; this reference is independent of the Comparator reference.
00 = Internal Reference Disabled, reference comes from external pin.
01 = Internal Reference set to 1.0 V.
10 = Internal Reference set to 2.0 V (default).
Reserved
These bits are reserved and must be programmed to 0000000.
PS024315-1011
PRELIMINARY
ADC Control Register Definitions