Panasonic JB-3300 Technical Manual page 408

£. Data read (DMA mode)
DO to 7 Cutpuy-
Defined Data Byte
DATA O
to 7 _X
Y
xX
T /O-
C/D-
DACK3
TOR
ACK
DRO
DRD | |
g.- Status read (control signal) (321H)
Set the AQ and Al signals to the "H" and "L" levels and read them so
that the control signals REQ, I/O, C/D, BUSY, DRQ, and IRQ are read.
DO to 7
Al ? \
a
AO
IOR
VII - 13