FEDL2250DIGEST-01
OKI Semiconductor
Status Read Timing
ML2252/54-XXX, ML22Q54
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 BUSY 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 BUSY 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.
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