Datasheet

PIC12F752/HV752

DS41576B-page 114 Preliminary  2011 Microchip Technology Inc.

13.5 FVR Control Registers

TABLE 13-1: SUMMARY OF REGISTERS ASSOCIATED WITH FIXED VOLTAGE REFERENCE

R/W-0/0 R-q/q R/W-0/0 R/W-0/0 U-0 U-0 U-0 U-0

FVREN FVRRDY FVRBUFEN FVRBUFSS — — — —

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets

‘1’ = Bit is set ‘0’ = Bit is cleared q = Value depends on condition

bit 7 FVREN: Fixed Voltage Reference Enable bit

0 = Fixed Voltage Reference is disabled

1 = Fixed Voltage Reference is enabled

bit 6 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

bit 5 FVRBUFEN: Voltage Reference Output Pin Buffer Enable

0 = Output buffer is disabled

1 = Output buffer is enabled

bit 4 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

bit 3-0 Unimplemented: Read as ‘0’

Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

on page

FVRCON FVREN FVRRDY FVRBUFEN FVRBUFSS

— — — —

114

Legend: Shaded cells are not used with the Fixed Voltage Reference.