MM Measurement-Mode Enable
D Multipath Mode
T Timing Facility
V Device Number Valid
LPM Logical-Path Mask
PNOM Path-Not-Operational Mask
LPUM Last-Path-Used Mask
PIM Path-Installed Mask
MBI Measurement-Block Index
POM Path-Operational Mask
PAM Path-Available Mask
CHPIDs Channel-Path Identifiers
F Measurement Block Format Control
X Extended Measurement Word Enable
S Concurrent Sense
The Subchannel-Status Word (SCSW) provides information about the status of a subchannel and its
associated devices. The format of the SCSW is as follows:
Word
0
Key
S
L
CC
F
P
I
A
U
Z
E
N
0
FC
AC
SC
1
CCW Address
2
Device Status
Subchannel Status
Count
Figure 118: Subchannel-Status Word
Legend:
Key Subchannel Key
S Suspend Control
L ESW Format
CC Deferred Condition Code
F Format
P Prefetch
I Initial-Status Interruption Control
A Address-Limit-Checking Control
U Suppress-Suspend Interruption
Z Zero Condition Code
E Extended Control
