ASI Control A

Name:
ASI_CTRLA
Offset:
0x09
Reset:
0x02
Access:
-
Bit76543210
UPDICLKSEL[1:0]
AccessR/WR/W
Reset11

Bits 1:0 – UPDICLKSEL[1:0]: UPDI Clock Select

UPDI Clock Select

Writing these bits selects the UPDI clock output frequency. Default setting after reset and enable is 4MHz. Any other clock output selection is only recommended when the BOD is at the highest level. For all other BOD settings, the default 4MHz selection is recommended.

ValueDescription
0x0 Reserved
0x1 16MHz UPDI clock
0x2 8MHz UPDI clock
0x3 4MHz UPDI clock (Default Setting)