IP113F datasheet(18/46 Pages) ETC2

18 / 46 page

IP113F

Preliminary Data Sheet

Remote monitor without SMI programming

Auto sends (Status change notice)

IP113F sends out status frame without receiving status request frame if pin AUTO_SEND is pulled high. It

sends out the first status frame onto the fiber port when the link status of fiber port has established. It

sends out status frames when the status on TP port has changed. IP113F supports two types of frame.

For a TS-1000 maintenance frame, C[9:8] is 2’b10 and S[15:0] is defined as that in TS-1000 standard. For

an ICplus maintenance frame, C[9:8] is 2’b11 and S[15:0] is the content of MII register 22. It carries ICplus

private defined information. User can select the frame type by programming MII register 20.10. Central

IP113F uses the mechanism to get the status of the remote IP113F even if there is no SMI programming.

Option A

Central IP113F sends indication frames to terminal IP113F if its status is changed.

IP113F

(terminal)

IP113F

(central)

Maintenance frame

(C1=1, C2-3=01, C8-9= 01)

status changed !!

Option B

Terminal IP113F sends indication frames to central IP113F if its status is changed.

IP113F

(terminal)

IP113F

(central)

Maintenance frame

(C1=0, C2-3=01, C8-9= 01)

status changed !!

CRC polynomial for maintenance frame: X8 + X2 + X + 1

data in

CRC + data

CRC calculation

Confidential.

18/46

Aug. 20, 2003

IP113F-DS-R02

IP113F датащи(PDF) 18 Page - List of Unclassifed Manufacturers