The action performed depends on the reason code value at offset +0 in R1.
| # | Hex # | Action |
|---|---|---|
| 0 | &00 | Read soft-copy of CMOS clock as string |
| 1 | &01 | Read CMOS clock as BCD |
| 2 | &02 | Convert BCD to string |
| 3 | &03 | Read soft-copy of CMOS clock as 5-byte integer |
The purpose of this call is to provide a number of read operations relating to the CMOS clock.