HP UX 11i v2 I/O Cards manual 93

ZCOM Tables and Data Structures

Interface Table

ISUBCH_BUF - Port subchannel configuration buffer (subchbuf_def)

This array contains the subchannel configuration bytes for each port on the ACC E1/T1 4-port Mux card. The Subch statements in the Subchannel-Definitionsection of the TTGEN configuration file are used to define the initial values of this array. Each element of the array is associated with a single port on the Mux card. Each element can be dynamically configured by calling the zconfig routine. The structure layout is as shown in Table 3-21.

Table 3-21		Port Subchannel Configuration Structure
Field Name			Field Description				Field Type		Size
									(Bytes)
tmsl		Timeslot assignment array					uns.int[32]		32*4
spec		Subchannel specification array					uns.int[32]		32*4
		Where:
		Each element of the timeslot array has the structure shown in
		Table 3-22.
Table 3-22		Timeslot Array Element Structure
31-30	29	28-24		23-16	15-14	13		12-8	7-0
spare	TTI	TxSubch		TxFill	spare	RTI		RxSubch	RxFill
		TTI	-		Transmit Timeslot Inhibit
		TxSubch	-		Transmit subchannel number
		TxFill	-		Transmit fill mask
		RTI	-		Receive Timeslot Inhibit
		xclock	-		Clock multiplier
		RxSubch	-		Receive subchannel number
		RxFill	-		Receive fill mask
		spare		- Reserved, not used (must be 0)

Chapter 3 93