TXC-06885BIOG Transwitch Corporation, TXC-06885BIOG Datasheet - Page 107

• Manufacturer Part Number: TXC-06885BIOG
• Manufacturer: Transwitch Corporation

Specifications of TXC-06885BIOG

• Operating Supply Voltage (typ): 1.8/3.3V
• Operating Temperature Classification: Industrial
• Package Type: BGA
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

4004
(cont.)
4008
(hex)
Addr
PRELIMINARY TXC-06885-MB, Ed. 6A
February 2005
RW
RO
RW
RO
RW
RO
RW
RO
Mode
5
7-6
9-8
11-10
15-12
31-16
6-0
7
Range
Bit
Port 0 Ethernet Status and Configuration Register Description
value after
0
0
0x7
0x60
Default
reset
- Memory Maps and Bit Descriptions -
Huge Frame Enable:
0 - The port will limit the length of frames to the Maximum Frame Length
value
1 - Allows frames longer than the Maximum Frame Length to be
transmitted and received
Reserved
Interface Mode: This field determines the type of interface the port is
connected to. These 2-bits must be set to “01” for SMII, “10” for GMII and
“01” for MII interface.
Note: This is in addition to the Port Configuration Pins (CFGCMACA[1-
0], CFGCMACB[1-0], CFGCMACC[1-0] and CFGCMACD[1-0]). Ports
0, 8, 16, and 24 are the only ports that can be configured as GMII or MII
ports.
Reserved
Preamble Length: This field determines the length of the preamble field
of the frame, in bytes.
Reserved
IPG/IFG SETTINGS
Back-to-Back Inter-Packet-Gap: This is a programmable field
representing the IPG between Back-to-Back Frames. This is the IPG
parameter used exclusively in Full-Duplex and Half-Duplex modes when
two transmit frames are sent back-to-back. Set this field to the number of
bits of IPG desired. The default value is 0x60 (96d).
Reserved
Description
Envoy-CE4 Device
DATA SHEET
TXC-06885
1 07 o f 12 8