PIC12F752-I-SN Datasheet, PDF (114/210 Pages) Microchip Technology – 8-Pin, Flash-Based 8-Bit CMOS Microcontrollers

PIC12F752/HV752
13.5 FVR Control Registers
REGISTER 13-1: FVRCON: FIXED VOLTAGE REFERENCE CONTROL REGISTER
R/W-0/0
R-q/q
R/W-0/0
R/W-0/0
U-0
U-0
U-0
FVREN
FVRRDY FVRBUFEN FVRBUFSS
—
—
—
bit 7
U-0
—
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
q = Value depends on condition
bit 7
bit 6
bit 5
bit 4
bit 3-0
FVREN: Fixed Voltage Reference Enable bit
0 = Fixed Voltage Reference is disabled
1 = Fixed Voltage Reference is enabled
FVRRDY: Fixed Voltage Reference Ready Flag bit
0 = Fixed Voltage Reference output is not ready or not enabled bit
1 = Fixed Voltage Reference output is ready for use
FVRBUFEN: Voltage Reference Output Pin Buffer Enable
0 = Output buffer is disabled
1 = Output buffer is enabled
FVRBUFSS: Voltage Reference Pin Buffer Source Select bit
0 = Bandgap (1.2V) is the input to the output voltage buffer
1 = dac_out is the input to the output voltage buffer
Unimplemented: Read as ‘0’
TABLE 13-1: SUMMARY OF REGISTERS ASSOCIATED WITH FIXED VOLTAGE REFERENCE
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register
on page
FVRCON
FVREN FVRRDY FVRBUFEN FVRBUFSS
—
—
—
—
114
Legend: Shaded cells are not used with the Fixed Voltage Reference.
DS41576B-page 114
Preliminary
 2011 Microchip Technology Inc.