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ZCOM Tables and Data Structures

Physical Terminal Tables

Chapter 368

Physical Terminal Tables

The physical terminal table (zptt_type) contains information used by the

LDM and DAM to initialize and control a physical terminal (or other

device). The PTT consists of a system area, which is reserved for use by

the ZCOM subsystem, and a user area which may be manipulated by

application programs. The user modifiable portion of the PTT

immediately follows the reserved area. The layout of the PTT is shown in

Table 3-11 and Table 3-12.

Table 3-11 Physical Terminal Tables (System Area)

Field Name Field Description Field Type

Size

(Bytes)

PTZLU Owning terminal ZLU number uns.short 2

PTZCS Owning terminal ZLU checksum uns.short 2

PTMUX MUX number for this terminal uns.short 2

PTPORT Port number within interface uns.char 1

PTTERM Terminal number within port uns.char 1

PTMX_TERM Terminal number in card uns.short 2

SUBCH Subchannel number on port uns.short 2

PTZPRCVR ZCOM address of primary receiver struct 6

PTZPCTL_RCVR ZCOM address of primary control

receiver

struct 6

PTZSHRCVRS Pointer to list of shared receivers pointer 8

PTZSHCTLRCVR

Pointer to list of shared control

receivers

pointer 8

PTLIST Pointer to next PTT of same port pointer 8

PTTXLX Pointer to next PTT on express list pointer 8

PTTXQX Express transmit buffer queue struct 56

1 2 ... 63 64 65 66 67 68 69 70 71 72 73 ... 327 328

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HP Advanced Communications Controllers (ACC) Guía de usuario Pagina 68