LAN9420I-NU Standard Microsystems (SMSC), LAN9420I-NU Datasheet - Page 86

• Manufacturer Part Number: LAN9420I-NU
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LAN9420I-NU

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

Revision 1.4 (12-17-08)
4.2
The registers located at 0100h - 01FCh are visible via the memory map, but are reserved and must not be
0100h – 01FCh
00E4h – 00F0h
OFFSET
System Control and Status Registers (SCSR)
00CCh
00DCh
00C0h
00C4h
00C8h
00D0h
00D4h
00D8h
00FCh
00E0h
00F4h
00F8h
Table 4.2, "System Control and Status Register Addresses"
accessed. The registers located at 0100h - 01FCh are not visible or accessible via IO.
Table 4.2 System Control and Status Register Addresses
RESERVED
FREE_RUN
RESERVED
PMT_CTRL
GPIO_CFG
E2P_DATA
GPT_CFG
BUS_CFG
E2P_CMD
GPT_CNT
SYMBOL
INT_CFG
INT_CTL
INT_STS
ID_REV
Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
DATASHEET
86
ID and Block Revision
Interrupt Control Register
Interrupt Status Register
Interrupt Configuration Register
General Purpose IO Configuration
General Purpose Timer Configuration
General Purpose Timer Current Count
System Bus Configuration Register
Power Management Control
Reserved for Future Use
Free Run Counter
EEPROM Command Register
EEPROM Data Register
Reserved for Future Use
lists the registers contained in this section.
REGISTER NAME
SMSC LAN9420/LAN9420i
Datasheet