Fujitsu MHU2100AT Product Manual page 115

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
C141-E202-01EN
Status information
x x x DV
xx
xx
xx
xx
Error information
5.3 Host Commands
xx
5-39