System Control Blocks

TIMING CONTROL TABLE
0(0) TCTQA 3 (3)
TCTSW
Reserved TCT Switches
4 (4)
8 (8)
12 (C)
16 (10)
20 (14)
TCnCB
Initiator TCB Address
TCTCRTBL
TCT Storage Table Starting Address
TCTIOTBL
TCT I/o Table Starting Address
TCTPOOL
Subpool Number and Size of TCT
TCTUTL
MFT: Zeros, MVT: Address of User Time Limit Routine (IEFUTL)
24 (18) TCTUDATA
28 (lC)
32 (20)
36 (24)
40 (28)
44 (2C)
48(30)
52(34)
56(38)
60(3C)
Address of User Parameter List
TCTJMR
Address of the Job Management Record
TCTUSO
MFT: Zeros, MVT: Address of User Output Limit Routine (IEFUSO)
TCTSTOF
Step Time Extension Overfiow Fieid
TCTSACT
Total Step Time Extension
TCTWLMT
Job or Step Maximum Wait Time Limit 47 (2F)
TCTLIN
TSO Only: Count of Term i na I Li nes Input
TCILOUT
TSO Only: Count of Terminal Lines Output 55(37)
TCTAST
Time of Day That Device Allocation Started
TCTPPST
Time of Day That Problem Program Was Initially Loaded Into Main Storage
Figure 27. Timing Control Table (Part 1 of 3)
334 OS System Control Blocks (Release 21.7)