Mesa 7i92 - Space1: Ethernet Chip Access; Space2: Ethernet Eeprom Chip Access

7I92 24
REFERENCE INFORMATION
LBP16
SPACE 1: ETHERNET CHIP ACCESS
Space 1 allows access to the KSZ8851-16 registers for debug purposes. All
accesses are 16 bit.
Space 1 read with address NN45LLHH
Space 1 write with address NNC5LLHH
Space 1 read NN05
Space 1 write NN85
Example: read Ethernet chip CIDER register: 0145C000
01 ; = NN = read 1 16 bit value
45 ; read space 1 with address included
C0 ; LSB of CIDER address
00 ; MSB of CIDER address
SPACE 2: ETHERNET EEPROM CHIP ACCESS
This space is used to store the Ethernet MAC address, card name, and EEPROM
settable IP address. The Ethernet EEPROM space is accessed as 16 bit data. The first
0x20 bytes are read only and the remaining 0x60 bytes are read/write.
Space 2 read with address NN49LLHH
Space 2 write with address NNC9LLHH
Space 2 read NN09
Space 2 write NN89