| Field Name |
Length (bits) |
Bit |
Contents |
Description |
| Item |
Total |
Algn |
Off |
| readBep |
112 | 112 |
16 |
0 |
command Packet |
Initiate memory read from the BEP (see table 47, swreq Rev. I) |
header |
48 | 48 |
16 |
0 |
command Header |
Command Packet Header |
commandLength |
16 | 16 |
16 |
0 |
uint16 = 7 |
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 = 3 |
Command Operation code which determines format and action of the command [see enum CmdOpcode]: CMDOP_READ_BEP |
readAddress |
32 | 32 |
16 |
48 |
uint32 |
Virtual Back 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 |
80 |
uint32 |
Number of 32-bit words to read |