LAN9420I-NU SMSC, LAN9420I-NU Datasheet - Page 122

• 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)
BITS
1-0
2
Receiver Enable (RXEN)
When set (1), the MAC’s receiver is enabled and will receive frames from
the internal PHY. When reset, the MAC’s receiver is disabled and will not
receive any frames from the internal PHY.
Note:
Note:
RESERVED
In order to successfully enable the receive path, the RX DMAC
must be enabled by setting the Start/Stop Receive bit (SR) bit of
the
(DMAC_CONTROL)
RXEN).
In order to successfully disable the receive path, the receiver must
be disabled (by clearing RXEN) prior to disabling the RX DMAC
(by clearing the Start/Stop Receive bit (SR) bit of the
Controller Control (Operation Mode) Register
(DMAC_CONTROL)). Otherwise, RX DMA will not stop
(DMAC_STATUS will continue to show the Receive Process State
(RS) as Running and Receive Process Stopped (RPS) does not
assert).
DMA Controller Control (Operation Mode) Register
DESCRIPTION
prior to enabling the receiver (by setting
Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
DATASHEET
122
DMA
TYPE
SMSC LAN9420/LAN9420i
R/W
RO
DEFAULT
Datasheet
0b
-