PIC16C782 Microchip Technology Inc., PIC16C782 Datasheet - Page 42

• Manufacturer Part Number: PIC16C782
• Description: 8-bit Cmos Microcontrollers With A/d, D/a, Opamp, Comparators And Psmc
• Manufacturer: Microchip Technology Inc.

PIC16C781/782
FIGURE 3-12:
DS41171A-page 40
CAL_ACTIVE
OPAON
Data Bus
WR WPUB
RD WPUB
WR PORTB
WR TRISB
RD TRISB
WR ANSEL
RD ANSEL
WR IOCB
RD IOCB
RD PORTB
Analog Function Enable
AN7/OPA
Analog HI-Z = No internal drive on pin (analog input) during calibration.
OPAON
0
0
1
1
OPA MODULE
BLOCK DIAGRAM OF RB3/AN7/OPA PIN
PORTB Reg.
WPUB Reg.
ANSEL Reg.
IOCB Reg.
TRIS Reg.
D
D
CK
D
D
D
CK
CK
CK
CK
CAL_ACTIVE
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
0
1
x
x
Set
RBIF
ANSEL<7>
...
0
1
1
1
From other
RB<7:0> pins
Preliminary
Q
ADC/C1/C2 INPUT
EN
EN
Analog HI-Z
D
Analog
Analog
Digital
RBPU
V
V
P
N
DD
SS
Q
Q
OPA
Output
OPA Output
FUNCTION
Calibration
Digital I/O
Analog In
EN
EN
D
D
V
P
DD
TTL
Weak
Pull-up
PORTB<3> READ
Q1
Q3
2001 Microchip Technology Inc.
V
V
Pin
0
0
0
DD
SS
RB3/AN7/OPA