User`s guide

The XMI
2.5.11.4 Multiple Quadword Writes
The multiple quadword writes are octaword Write Mask, octaword Unlock
Write Mask, hexword Write Mask, and hexword Unlock Write Mask
transactions.
Multiple quadword writes identify the first cycle of the transfer with the
desired write length. HOLD is asserted while successive cyles provide new
data so that there are no null cycles in between.
Figure 2–32 Octaword Write
123 456
FUNCT
DATA
ID
CONF
ARB
|
|
|
|
|CMD |WDAT|WDAT|
|WRTM|DAT0|DAT1|
|CMDR|CMDR|CMDR|
|
|
|
|
|
|
| |ACK |ACK |ACK |
|
command cycle with no intervening null cycles.
msb−p184−89
NOTE: The write data must immediately follow the
|CMDR|HOLD|HOLD|
|
||
2–51