Using HDLC.FRAME Protocol

 

 

 

Status and Error Messages

Table 3-3

Z7340A Interface Unsolicited Status Codes

 

 

 

 

 

Unsolicited

Description

 

Status Code

 

 

 

 

 

 

IO_ALRDY_DSBL

A disable request is received, while HDLC.FRAME is

 

 

 

already disabled. No action is taken.

 

 

 

 

 

IO_RX_BUF

Either the port or the card as a whole is running low on

 

 

 

free buffers. Some tuning of the ACC configurable

 

 

 

parameters may be required. Refer to the section on

 

 

 

“TTGEN” in the ACC Utilities Reference Guide.

 

 

 

 

 

Other Non-E1/T1 interfaces

 

The following unsolicited status codes may be received by an application

 

program from the HDLC.FRAME protocol on a non-E1/T1 interface.

Table 3-4

Other Non-E1/T1 Interface Unsolicited Status Codes

 

 

 

 

 

Unsolicited

 

Description

 

Status Code

 

 

 

 

 

 

 

IO_OK

 

No error detected.

 

 

 

Normal communications have been established or

 

 

 

resumed.

 

 

 

 

 

ST25DSBL

 

Terminal Disabled

 

 

 

 

 

ST25XDCD

 

Loss of DCD signal

 

 

 

 

 

ST25XCTS

 

Loss of CTS signal

 

 

 

 

 

IO_STATS

 

This message is sent in response to a CW_STATS control

 

 

 

write. The data buffer contains a x25l2stat_type

 

 

 

structure (defined in zcomx25.h)

 

 

 

 

Chapter 3

29