SNLS603C December 2020 – November 2022 DP83TG720R-Q1
PRODUCTION DATA
There are two different methods for accessing registers within the field. Direct register access method is only allowed for the first 31 registers (0x0h through 0x1Fh) of MMD1F register space. Registers beyond 0x1Fh must be accessed by use of the Indirect Method (Extended Register Space) described in Section 8.4.11.
MMD REGISTER SPACE | REGISTER ADDRESS RANGE |
---|---|
MMD1F | 0x000 - 0x0EFD |
MMD1 | 0x1000 - 0x1904 |
MMD3 | 0x3000 - 0x390D |
MMD7 | 0x7000 - 0x7200 |
REGISTER FIELD | REGISTER ACCESS METHODS |
---|---|
0x0h through 0x1Fh | Direct Access |
Indirect Access, MMD1F = '11111' Example: to read register 0x17h in MMD1F field with no post increment Step 1) write 0x1Fh to register 0xDh Step 2) write 0x17h to register 0xEh Step 3) write 0x401Fh to register 0xDh Step 4) read register 0xEh | |
MMD1F Field 0x20h - 0xFFFh | Indirect Access, MMD1F = '11111' Example: to read register 0x462h in MMD1F field with no post increment Step 1) write 0x1Fh to register 0xDh Step 2) write 0x462h to register 0xEh Step 3) write 0x401Fh to register 0xDh Step 4) read register 0xEh |
MMD1 Field 0x0000h - 0x0FFFh | Indirect Access, MMD1 = '00001' Example: to read register 0x7h in MMD1 field with no post increment Step 1) write 0x1h to register 0xDh Step 2) write 0x7h to register 0xEh Step 3) write 0x4001h to register 0xDh Step 4) read register 0xEh |