LAN9420I-NU SMSC, LAN9420I-NU Datasheet - Page 96

• 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

Revision 1.4 (12-17-08)
4.2.8
31:28
26:25
BITS
24:0
27
RESERVED
RESERVED
RX/TX Arbitration Priority Select (CSR_RXTXWEIGHT)
This field selects the arbitration priority ratio for receive and transmit DMA
operations. This field has no effect unless the BAR bit in the BUS_MODE
DCSR is cleared.
RESERVED
Bus Master Bridge Configuration Register (BUS_CFG)
This register determines the bus arbitration characteristics for the RX and TX DMA engines.
Setting
------------------------------------------------
00b
01b
10b
11b
Offset:
Priority Ratio (RX:TX)
4:1
1:1
2:1
3:1
DESCRIPTION
00DCh
Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
DATASHEET
96
Size:
32 bits
TYPE
SMSC LAN9420/LAN9420i
R/W
R/W
RO
RO
DEFAULT
00b
Datasheet
0b
-
-