82598EB Datasheet, PDF (310/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Register Descriptions
Field
ADDR
CMD
CMDV
FLBUSY
Reserved
DONE
WRDONE
Bit(s)
Initial
Value
23:0
0x0
24:25
00b
26
0b
27
0b
29:28
00b
30
1b
31
1b
Description
Address
This field is written by manageability along with Start Read or Start Write to indicate
which Flash address to read or write.
Command
Indicates which command should be executed. Valid only when the CMDV bit is set.
00b = Read command.
01b = Write command.
10b = Sector erase. Note: Sector erase is applicable only for Atmel* Flashes.
11b = Erase.
Command Valid
When set, indicates that the manageability firmware issues a new command and is
cleared by hardware at the end of the command.
Flash Busy
This bit indicates that the Flash is busy processing a Flash transaction and should
not be accessed.
Reserved
Read Done
This bit clears after the CMDV bit is set by manageability and is set back again when
a Flash single-read transaction completes.
When reading a burst transaction, this bit is cleared each time manageability reads
FLMNGRDDATA.
Global Done
This bit clears after the CMDV bit is set by manageability and is set back again when
all Flash transactions complete. For example, the Flash device finished reading all
the requested read or other accesses (write and erase).
4.4.3.2.7 Manageability Flash Read Data – FLMNGDATA (0x1011C; RW)
This register can be read/written by manageability firmware and is read-only to host software.
Field
DATA
Bit(s)
Initial
Value
Description
31:0
0x0
Read/Write Data
On a read transaction, this register contains the data returned from the Flash read.
On write transactions, bits 7:0 are written to the Flash.
4.4.3.2.8 Manageability Flash Read Counter – FLMNGCNT (0x10120; RW)
This register can be read/written by manageability firmware and is read-only to host software.
310