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CICS and TCAM: program interrelationship
Figure 104 illustrates the interrelationship between the TCAM message control
program (MCP) and the TCAM application program. CICS is regarded as an
application program by TCAM.
S70A
Terminal
S70B
S75A
T32C
3271
MH3270
message
handler
PG3270
DCB
TRM2
TRM1
LG2260
DCB
TOTCAM
message
handler
3270 (Remote)
2260s (Local)
To CICS
message
handler
QPROC
PCB
R70I
TPROCESS
R70O
TPROCESS
RIS1
TPROCESS
WIS1
TPROCESS
SDSCI(DCB)
TCTLE
DDNAME=
R3270IN
OUTQ=
SDSCI(DCB)
SDSCI(DCB)
SDSCI(DCB)
TCTLE
DDNAME=
R3270OUT
TCTLE
DDNAME=
QIN1
OUTQ=
TCTLE
DDNAME=
QOUT1
TCTTE
"DMMX"
TCTTE
"DMMY"
TRM1
TCTTE
S70A
TCTTE
S75A
S70B
TRM2
DD Cards
DD Cards
DDLG3270
DDLG2260
DD
DD
UNIT=xxx
UNIT=(a, b)
//QIN1
//QOUT1
//R3270IN
//R3270OUT
DD
DD
DD
DD
QNAME=RIS1
QNAME=WIS1
QNAME=R70I
QNAME=R70O
TCAM MCP
CICS Application program
Read
Read
Write
Write
Figure 104. TCAM message control and application program
CICS-TCAM program interrelationship
Chapter 26. Using TCAM with CICS 709