DS-7315 Rev 04 2013-11-21

SPG-FE-FX-IDFC

SPG-FE-FX-CDFC

Recommended Software configuration

How to configure auto-negotiation, loopback, work speed

The module can support auto-negotiation, loopback configuration.

Please refer the following steps to configure:

Step 1: Access the module at 0xA2 via two-wire serial interface.

Step 2: Configure 0x6Dh/6Eh (Byte 109~110) as below table. Addr.109 default is “5Fh”. Addr.110 default is

“00h”.

Addr. 109

Function

“1”

“0”

Default Value

(BIN)

bit7

FEFI Status

FEFI condition detected

FEFI

condition

not

detected

‘0’

bit6

Fiber

Auto-Negotiation

Disable

Enable

‘1’

Bit5

MAC

Auto-Negotiation

Disable

Enable

‘0’

bit4

FEFI function

Disable

Enable

‘1’

bit3

CRC checker

Disable/Reset

Enable

‘1’

bit2

Fiber loop back

Disable

Enable

‘1’

bit1

MAC loop back

Disable

Enable

‘1’

bit0

Reserved

Reserved

Reserved

‘1’

Addr. 110

Function

“1”

“0”

Default Value

(BIN)

bit7

TX Disable State

TX-Disable

TX-Enable

‘0’

bit6

TX-Disable

TX-Disable

TX-Enable

‘0’

Bit5~Bit4

Reserved

Reserved

Reserved

‘0’

Bit3

Work speed mode

1000Base

100Base

‘0’

Bit2

TX fault output

status

TX fault indication

No fault

‘0’

Bit1

LOS pin output

status

LOS asserted

(Link down)

LOS de-asserted

(Link up)

‘0’

Bit0

Data Ready status

Not ready

Ready

‘0’

Notes: “1” is invalid for Bit 3 in address 110(work speed is only 100Base).

Monitoring Specification

The digital diagnostic monitoring interface also defines another 256-byte memory map in EEPROM,

which makes use of the 8 bit address 1010001X (A2h). Please see Figure 4. For detail EEPROM

information, please refer to the related document of SFF-8472 Rev 9.5. The monitoring specification of

this product is described in Table 8.