| Field Name |
Length (bits) |
Bit |
Contents |
Description |
| Item |
Total |
Algn |
Off |
| readFep |
128 | 128 |
16 |
0 |
command Packet |
Initiate memory read from one FEP (see table 52, swreq Rev. I) |
header |
48 | 48 |
16 |
0 |
command Header |
Command Packet Header |
commandLength |
16 | 16 |
16 |
0 |
uint16 = 8 |
Number of 16-bit words in the command packet |
commandIdentifier |
16 | 16 |
16 |
16 |
uint16 |
Used by ground to identify the command |
commandOpcode |
16 | 16 |
16 |
32 |
uint16 = 4 |
Command Operation code which determines format and action of the command [see enum CmdOpcode]: CMDOP_READ_FEP |
fepId |
3 | 3 |
1 |
48 |
uint3 |
Id of Front End Processor to read [see enum FepId] |
readAddress |
32 | 32 |
16 |
64 |
uint32 |
Virtual Front End Processor address to read. The range of addresses (address .. address+count-1) must not cross I-cache boundary (0x80080000, 0x800fffff) |
wordCount |
32 | 32 |
16 |
96 |
uint32 |
Number of 32-bit words to read |