參數(shù)資料
型號: PIC16C662T-04E/TQ
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PQFP44
封裝: 10 X 10 MM, 1 MM HEIGHT, PLASTIC, TQFP-44
文件頁數(shù): 79/136頁
文件大?。?/td> 634K
代理商: PIC16C662T-04E/TQ
1996 Microchip Technology Inc.
Preliminary
DS30559A-page 47
PIC16C64X & PIC16C66X
7.0
COMPARATOR MODULE
The
comparator
module
contains
two
analog
comparators. The inputs to the comparators are
multiplexed with pins RA0 through RA4. The on-chip
Voltage Reference (Section 8.0) can also be an input to
the comparators.
The CMCON register, shown in Figure 7-1, controls the
comparator input and output multiplexers. A block
diagram of the comparator is shown in Figure 7-2.
FIGURE 7-1:
CMCON REGISTER (ADDRESS 1Fh)
R-0
U-0
R/W-0
C2OUT
C1OUT
CIS
CM2
CM1
CM0
R =Readable bit
W =Writable bit
U =Unimplemented bit, read
as ‘0’
- n =Value at POR reset
bit7
bit0
bit 7:
C2OUT: Comparator 2 output
1 = C2 VIN+ > C2 VIN
0 = C2 VIN+ < C2 VIN
bit 6:
C1OUT: Comparator 1 output
1 = C1 VIN+ > C1 VIN
0 = C1 VIN+ < C1 VIN
bit 5-4:
Unimplemented: Read as '0'
bit 3:
CIS: Comparator Input Switch
When CM2:CM0: = 001:
Then:
1 = C1 VIN– connects to RA3
0 = C1 VIN– connects to RA0
When CM2:CM0 = 010:
Then:
1 = C1 VIN– connects to RA3
C2 VIN– connects to RA2
0 = C1 VIN– connects to RA0
C2 VIN– connects to RA1
bit 2-0:
CM2:CM0: Comparator mode
Figure 7-2 shows the comparator modes and CM2:CM0 bit settings.
This document was created with FrameMaker404
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