PIC16C782 Microchip Technology Inc., PIC16C782 Datasheet - Page 87

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

FIGURE 11-2:
REGISTER 11-2:
2001 Microchip Technology Inc.
DAC
Module
1.2V nominal
bit 7
bit 6
bit 5
bit 4-0
CALREF
OPA-
OPA+
1
0
AUTO CALIBRATION MODULE BLOCK DIAGRAM
CALIBRATION CONTROL REGISTER (CALCON: 110h)
CAL: Start and Status bit
1 = Initiates a calibration
0 = Reserved (CAL is cleared by hardware)
CALERR: Calibration Error Indicator bit
1 = Error occurred, OPAMP failed
0 = No error
CALREF: Calibration Voltage Select bit
1 = V
0 = 1.2V nominal source (internal voltage source)
Reserved: Do not use
bit 7
Legend:
S = Cleared by hardware
R = Readable bit
- n = Value at POR
Note:
R/S-0
CAL
DAC
set to desired common voltage reference
V
DAC
CALERR
R-0
must not exceed OPAMP maximum common mode voltage.
0
1
0
1
CALREF
R/W-0
Preliminary
W = Writable bit
’1’ = Bit is set
Automatic Calibration Module
U-0
—
OPA
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
U-0
—
PIC16C781/782
U-0
—
0
1
x = Bit is unknown
U-0
—
DS41171A-page 85
OPA
U-0
—
bit 0