LAN9420I-NU SMSC, LAN9420I-NU Datasheet - Page 93

• Manufacturer Part Number: LAN9420I-NU
• Description: IC ETHERNET CTRLR SGL 128VTQFP
• Manufacturer: SMSC
• Type: Single Chip MAC and PHY Controllerr

Specifications of LAN9420I-NU

• Controller Type: Ethernet Controller
• Interface: PCI
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 145mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Product: Ethernet Controllers
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 MB, 100 MB
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.6 V
• Maximum Operating Temperature: + 85 C
• Ethernet Connection Type: 10/100 Base-T
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 638-1085

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
Datasheet
SMSC LAN9420/LAN9420i
BITS
10:8
7:5
4:3
2:0
[22]
0
0
0
0
1
1
1
1
GPIO Direction 0-2 (GPDIRn)
When set, enables the corresponding GPIO as an output. When cleared the
GPIO is enabled as an input. Bits are assigned as follows:
GPIO0 – bit 8
GPIO1 – bit 9
GPIO2 – bit 10
RESERVED
GPO Data 3-4 (GPODn)
The value written is reflected on GPOn. Bits are assigned as follows:
GPO3 – bit 3
GPO4 – bit 4
GPIO Data 0-2 (GPIODn)
When enabled as an output, the value written is reflected on GPIOn. When
read, GPIOn reflects the current state of the corresponding GPIO pin. Bits
are assigned as follows:
GPIO0 – bit 0
GPIO1 – bit 1
GPIO2 – bit 2
Note 4.2
[21]
0
0
1
1
0
0
1
1
Default value is dependent on the state of the GPIO pin.
[20]
0
1
0
1
0
1
0
1
Table 4.3 EEPROM Enable Bit Definitions
DESCRIPTION
EEDIO FUNCTION
DATASHEET
TX_CLK
EEDIO
TX_EN
TX_EN
GPO3
GPO3
93
Reserved
Reserved
EECLK FUNCTION
TYPE
RX_CLK
R/W
R/W
R/W
EECLK
RX_DV
RX_DV
RO
GPO4
GPO4
Revision 1.4 (12-17-08)
DEFAULT
Note 4.2
000b
00b
-