PIC16F631-I/P Microchip Technology Inc., PIC16F631-I/P Datasheet - Page 108

• Manufacturer Part Number: PIC16F631-I/P
• Description: MCU, 8-Bit, 1KW Flash, 64 RAM, 18 I/O, PDIP-20
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F631-I/P

• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 128 Bytes
• Input Output: 18
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 20-pin PDIP
• Programmable Memory: 1.75K Bytes
• Ram Size: 64 Bytes
• Speed: 20 MHz
• Timers: 1-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F631/677/685/687/689/690
REGISTER 8-5:
TABLE 8-2:
DS41262D-page 106
ANSEL
CM1CON0
CM2CON0
CM2CON1
INTCON
PIE2
PIR2
PORTA
PORTC
REFCON
SRCON
TRISA
TRISC
VRCON
Legend:
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3-0
C1VREN
Name
R/W-0
x = unknown, u = unchanged, – = unimplemented, read as ‘0’. Shaded cells are not used for comparator.
MC1OUT MC2OUT
C1VREN
TRISC7
OSFIE
OSFIF
C1ON
C2ON
ANS7
Bit 7
RC7
SR1
GIE
C1VREN: Comparator C1 Voltage Reference Enable bit
1 = CV
0 = 0.6 Volt constant reference routed to C1V
C2VREN: Comparator C2 Voltage Reference Enable bit
1 = CV
0 = 0.6 Volt constant reference routed to C2V
VRR: Comparator Voltage Reference CV
1 = Low Range
0 = High Range
VP6EN: 0.6V Reference Enable bit
1 = Enabled
0 = Disabled
VR<3:0>: Comparator Voltage Reference CV
When VRR = 1: CV
When VRR = 0: CV
—
—
—
SUMMARY OF REGISTERS ASSOCIATED WITH THE COMPARATOR AND VOLTAGE
REFERENCE MODULES
C2VREN
R/W-0
VRCON: VOLTAGE REFERENCE CONTROL REGISTER
REF
REF
C2VREN
TRISC6
C1OUT
C2OUT
ANS6
PEIE
Bit 6
C2IE
C2IF
RC6
SR0
—
—
—
circuit powered on and routed to C1V
circuit powered on and routed to C2V
W = Writable bit
‘1’ = Bit is set
S = Bit is set only
TRISC5 TRISC4 TRISC3 TRISC2
TRISA5 TRISA4 TRISA3 TRISA2
R/W-0
C1SEN
C1OE
C2OE
BGST
VRR
ANS5
C1IE
Bit 5
T0IE
C1IF
VRR
RA5
RC5
REF
REF
—
= (VR<3:0>/24) * V
= V
C2REN
C1POL
C2POL
VP6EN
DD
VRBB
ANS4
INTE
EEIE
EEIF
Bit 4
RA4
RC4
—
/4 + (VR<3:0>/32) * V
VP6EN
R/W-0
PULSS
RABIE
VREN
ANS3
Bit 3
RA3
RC3
VR3
—
—
—
—
—
REF
DD
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PULSR
Range Selection bit
REF
REF
REF
VROE
ANS2
Bit 2
T0IF
C1R
C2R
RA2
RC2
VR2
R/S-0
—
—
—
VR3
REF
REF
Value Selection 0 ≤ VR<3:0> ≤ 15
input of Comparator C1
input of Comparator C2
DD
input of Comparator C1
input of Comparator C2
CVROE
TRISA1
TRISC1
C1CH1
C2CH1
T1GSS
ANS1
Bit 1
INTF
RC1
RA1
VR1
—
—
—
R/S-0
VR2
C2SYNC
TRISC0
TRISA0
C1CH0
C2CH0
RABIF
ANS0
Bit 0
RA0
RC0
VR0
—
—
—
—
© 2007 Microchip Technology Inc.
x = Bit is unknown
1111 1111
0000 -000
0000 -000
00-- --10
0000 000x
0000 ----
--xx xxxx
xxxx xxxx
--00 000-
0000 00--
--11 1111
1111 1111
0000 0000
POR, BOR
0000----
Value on
VR1
U-0
1111 1111
0000 0000
0000 -000
00-- --10
0000 000x
0000 ----
--uu uuuu
uuuu uuuu
--00 000-
0000 00--
--11 1111
1111 1111
0000 0000
0000----
Value on
all other
Resets
VR0
U-0
bit 0