ACC Programmer's Reference Guide

Chapter 3 93
ZCOM Tables and Data Structures
Interface Table
ICFG_LKUPT - Optional E1/T1 tunable parameters (zcfg_lookup_t)
This structure contains the optional E1/T1 tunable parameters that
allow you to fine tune the allocation of resources ( memory) within the
E1/T1 card. Specifically, these parameters allow you to fine tune how
card memory is divided up between internal tables and I/O buffers.
These parameters may be specified in the TTGEN Interface-Definition
section. This structure has the fields shown in Table 3-24.
Table 3-24 Optional E1/T1 Tunable Parameters
Field Name Field Description Field Type Size
(Bytes)
datadelay $DATA transfer delay (milliseconds) uns.short 2
ttablenbr Maximum # of terminal table entries uns.int 2
ttablesize Size of terminal table entries (in bytes) uns.int 4
zbufsize Size of the card’s buffers (in bytes) uns.int 4
zbufnbr Number of I/O buffers uns.int 4
mheadnbr Number of buffer header entries uns.int 4
mquota
Quota of msg headers allowed for each
subchannel
uns.int 4
bquota
Quota of buffers allowed for each subchannel uns.int 4
tracesize Firmware trace buffer size uns.int 4
traceopt Firmware trace option bits uns.int 4
spare1~3 Reserved, not used uns.int[3] 4*3
tsize Size of timer tables in bytes uns.int[4] 4*4