NEC Network Controller uPD98502 - Manual (Page 429)

CHAPTER 10 MICRO WIRE
Preliminary User’s Manual S15543EJ1V0UM 429
10.3 Registers
10.3.1 Register map
Offset Address Register Name R/W Access Description
1000_00D0H ECCR W W/H/B EEPROM Command Control Register
1000_00D4H ERDR R W/H/B EEPROM Read Data Register
1000_00D8H MACAR1 R W/H/B MAC Address Register 1
1000_00DCH MACAR2 R W/H/B MAC Address Register 2
1000_00E0H MACAR3 R W/H/B MAC Address Register 3
10.3.2 ECCR (EEPROM Command Control Register)
Bits Field R/W Default Description
31:16 DATA W 0 Write data to Serial EEPROM. No meaning in case of data read.
15:9 Reserved W 0 Reserved
8:6 CMD W 0 Serial EEPROM command.
5:0 ADDRESS W 0 Serial EEPROM address.
10.3.3 ERDR (EEPROM Read Data Register)
Bits Field R/W Default Description
31 B R 1 Operation status of Micro Wire block.
1: busy
0: idle
30:16 Reserved R 0 Reserved
15:0 READ DATA R 0 Read data from Serial EEPROM.
10.3.4 MACAR1 (MAC Address Register 1)
Bits Field R/W Default Description
31:16 SERIAL
EEPROM 02H
ADDRESS
R 0 Stored Serial EEPROM data of address 01H, 02H.
15:0 SERIAL
EEPROM 01H
ADDRESS
R 0
10.3.5 MACAR2 (MAC Address Register 2)
Bits Field R/W Default Description
31:16 SERIAL
EEPROM 04H
ADDRESS
R 0 Stored Serial EEPROM data of address 03H, 04H.
15:0 SERIAL
EEPROM 03H
ADDRESS
R 0