Data Sheet

Flash Map—Ethernet Controller I210
245
6.9.2.2 Format of the RO Updates
The RO Updates words can contains the following 3 structures:
1. Shadow RAM Word Write Command (2 words)
2. CSR Write Command (4 words)
3. Shadow RAM contents, from word 0x0 to 0x7F8 included
The first two structures start with a Type field. Table 6-12 lists the supported values for the Type field.
Table 6-12. Supported Type Fields
Figure 6-1. Shadow RAM Word Write Command
Figure 6-1 CSR Write Command
Type Description
001b Word autoload.
010b CSR autoload.
Other Invalid type, parsing is stopped here.
Type
3b=3'b001
Word Address[12:0]
13b
Word Data[15:0]
16b
Type
3b=3'b010
RSV
1b - 1'b0
CSR Address [27:16]
12b
CSR Address [15:0]
16b
CSR Data[31:16]
16b
CSR Data[15:0]
16b