Write Register ('W')
|
cmd-ID |
cmd-data |
| PC -> µC |
‘W’ = 0x57 |
off3 |
off2 |
off1 |
off0 |
ctrl |
size |
d7 |
[d6] |
… |
[d0] |
| PC <- µC |
‘W’ = 0x57 |
result |
- |
- off3…off0: offset-address in bytes (4 Gbyte addressable)
- ctrl: see ctrl
- size: number of bytes to write (also determines number of data-bytes that follow)
- d7 … d0: data-bytes, only number of bytes used are sent (indicated by size)
- result:
0x00 = ok, value is written
0x01 = invalid (offset) address
0x02 = error dereferencing (null-pointer appeared at some dereference)