LAN9312-NU SMSC, LAN9312-NU Datasheet - Page 330

• Manufacturer Part Number: LAN9312-NU
• Description: Ethernet ICs Hi Per 2 Port 10/100 Ethernet Switch
• Manufacturer: SMSC
• Type: Two Port Managed Ethernet Switchr

Specifications of LAN9312-NU

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Switches
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 Mbps, 100 Mbps
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Supply Current (max): 185 mA, 295 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.7 (06-29-10)
14.5.2.9
BITS
31:0
RX 1024 to Max Bytes
Count of packets (including bad packets) that have between 1024 and the
maximum allowable number of bytes. The max number of bytes is 1518 for
untagged packets and 1522 for tagged packets. If Jumbo2K (bit 3) is set in
the
number of bytes is 2048.
Note:
Port x MAC Receive 1024 to Max Byte Count Register (MAC_RX_1024_TO_MAX_CNT_x)
This register provides a counter of received packets between the size of 1024 to the maximum
allowable number bytes. The counter is cleared upon being read.
Note: A bad packet is defined as a packet that has an FCS or Symbol error. For this counter, a packet
Port x MAC Receive Configuration Register
This counter will stop at its maximum value of FFFF_FFFFh.
Minimum rollover time at 100Mbps is approximately 5979 hours.
with the maximum number of bytes that is not an integral number of bytes (e.g. a 1518 1/2
byte packet) is counted.
Register #:
Port0: 0416h
Port1: 0816h
Port2: 0C16h
DESCRIPTION
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
DATASHEET
330
(MAC_RX_CFG_x), the max
Size:
32 bits
TYPE
RC
SMSC LAN9312
00000000h
DEFAULT
Datasheet