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IXF1104 4-Port Gigabit Ethernet Media Access Controller
Datasheet 221
Document Number: 278757
Revision Number: 007
Revision Date: March 25, 2004
8.4.11 Optical Module Register Overview
Table 153 through Table 156 “I2C Data Ports 0 - 3 ($0x79F)” on page 222 provide an overview of
the Optical Module Registers.
Note: All registers in this section are only applicable to ports that are configured in fiber mode.
Table 153. Optical Module Status Ports 0-3 ($0x799)
Bit Name Description Type
1
Default
Register Description:
This register provides a means to control and monitor the interface to
the optical modules when a port is used in fiber mode.
0x00000000
31:24 Reserved Reserved RO 0x00
23:20 Rx_LOS_3:0 Rx_LOS inputs for Ports 0-3 R 0x0
19:14 Reserved Reserved 0X00
13:10 Tx_FAULT_3:0 Tx_FAULT inputs for Ports 0-3 R 0x0
9:4 Reserved Reserved 0X00
3:0 MOD_DEF_3:0 MOD_DEF inputs for Ports 0-3 R 0x0
1. RO = Read Only, No clear on Read; R = Read, Clear on Read; W = Write only; R/W = Read/Write, No
clear; R/W/C = Read/Write, Clear on Write
Table 154. Optical Module Control Ports 0 - 3 ($0x79A)
Bit Name Description Type
1
Default
Register Description:
This register provides access to optical module interrupt enables and
sets the TX_DISABLE output for the ports configured in fiber mode.
0x00000000
31:17 Reserved Reserved RO 0x0000
16:13 I
2
C_port_enable When set, individually enables the four I
2
C ports. R/W 0xf
12 RX_LOS_EN
Enable for RX_LOS_INT operation
1 = Enabled
R/W 0
11 TX_FAULT_EN
Enable for TX_FAULT_INT operation
1 = Enabled
R/W 0
10 MOD_DEF_EN
Enable for MOD_DEF_INT operation
1 = Enabled
R/W 0
9:4 Reserved Reserved RO 0X00
3:0 TX_DISABLE_3:0 Tx_DISABLE outputs for Ports 0-3 R/W 0x0
1. RO = Read Only, No clear on Read; R = Read, Clear on Read; W = Write only; R/W = Read/Write, No
clear; R/W/C = Read/Write, Clear on Write