Compare n Buffer Register

This register serves as the buffer for the associated Compare n (TCAn.CMPn) register. Writing to this register from the CPU or UPDI will set the Compare Buffer valid (CMPnBV) bit in the TCAn.CTRLF register.

The TCAn.CMPnBUFL and TCAn.CMPnBUFH register pair represents the 16-bit value, TCAn.CMPnBUF. The low byte [7:0] (suffix L) is accessible at the original offset. The high byte [15:8] (suffix H) can be accessed at offset + 0x01.

Name:
CMPnBUF
Offset:
0x38 + n*0x01 [n=0..2]
Reset:
0x00
Access:
-
Bit15141312111098
CMPBUF[15:8]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000
Bit76543210
CMPBUF[7:0]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000

Bits 15:8 – CMPBUF[15:8]: Compare High Byte

Compare High Byte

This bit field holds the MSB of the 16-bit Compare Buffer register.

Bits 7:0 – CMPBUF[7:0]: Compare Low Byte

Compare Low Byte

This bit field holds the LSB of the 16-bit Compare Buffer register.