參數(shù)資料
型號: PIC16C622T-20I/SO
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 20 MHz, RISC MICROCONTROLLER, PDSO18
封裝: 0.300 INCH, PLASTIC, MS-013, SO-18
文件頁數(shù): 62/128頁
文件大?。?/td> 3677K
代理商: PIC16C622T-20I/SO
2003 Microchip Technology Inc.
DS30235J-page 37
PIC16C62X
7.0
COMPARATOR MODULE
The
comparator
module
contains
two
analog
comparators. The inputs to the comparators are
multiplexed with the RA0 through RA3 pins. The On-
Chip Voltage Reference (Section 8.0) can also be an
input to the comparators.
The CMCON register, shown in Register 7-1, controls
the comparator input and output multiplexers. A block
diagram of the comparator is shown in Figure 7-1.
REGISTER 7-1:
CMCON REGISTER (ADDRESS 1Fh)
R-0
U-0
R/W-0
C2OUT
C1OUT
CIS
CM2
CM1
CM0
bit 7
bit 0
bit 7
C2OUT: Comparator 2 output
1
= C2 V
IN+ > C2 VIN-
0
= C2 V
IN+ < C2 VIN-
bit 6
C1OUT: Comparator 1 output
1
= C1 V
IN+ > C1 VIN-
0
= C1 V
IN+ < C1 VIN-
bit 5-4
Unimplemented: Read as ‘0’
bit 3
CIS: Comparator Input Switch
When CM<2:0>: = 001:
1
= C1 V
IN- connects to RA3
0
= C1 V
IN- connects to RA0
When CM<2:0> = 010:
1
= C1 V
IN- connects to RA3
C2 V
IN- connects to RA2
0
= C1 V
IN- connects to RA0
C2 V
IN- connects to RA1
bit 2-0
CM<2:0>: Comparator mode.
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
- n = Value at POR
’1’ = Bit is set
’0’ = Bit is cleared
x = Bit is unknown
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