FEDL2250DIGEST-09
OKI Semiconductor
Status Read Timing
ML2250 family
CS (I)
RD (I)
D7 to D0 (I/O)
Data Stable
Table below shows the contents of each data output when reading the status of the channels.
Pin
D7
D6
D5
D4
D3
D2
D1
D0
Output status signal
“L” level
“L” level
“L” level
“L” level
Channel 2 busy output (BUSY2)
Channel 1 busy output (BUSY1)
Channel 2 NCR output (NCR2)
Channel 1 NCR output (NCR1)
The ÞËÍÇ signal outputs “L” level when either a command is being processed or the playback of a pertinent
channel is going on. In other states, the ÞËÍÇ signal outputs “H” level.
The NCR signal outputs “L” level when either a command is being processed or a pertinent channel is in standby
for playback. In other states, the NCR signal outputs “H” level.
To read out a status after inputting Flash I/F command for ML22Q54/Q58, D7-D0 pins output “L” level during
command processing. After the command processing is completed, D7-D0 pins output ”H” level.
22/36
OKI [ OKI ELECTRONIC COMPONETS ]
