Fujitsu MHU2100AT Product Manual page 184

Interface
At command issuance (I/O registers setting contents)
1F7 (CM)
H
1F6 (DH)
H
1F5 (CH)
H
1F4 (CL)
H
1F3 (SN)
H
1F2 (SC)
H
1F1 (FR)
H
At command completion (I/O registers contents to be read)
1F7 (ST)
H
1F6 (DH)
H
1F5 (CH)
H
1F4 (CL)
H
1F3 (SN)
H
1F2 (SC)
H
1F1 (ER)
H
5-108
1 1 1 1
x x x DV
xx
xx
xx
xx
04
Status information
xx
xx
xx
xx
xx
Error information
1 0 0 1
xx
C141-E202-01EN