ML22Q54 OKI [OKI electronic componets], ML22Q54 Datasheet - Page 18

• Manufacturer Part Number: ML22Q54
• Description: 2-Channel Mixing Oki ADPCM Algorithm-Based Speech Synthesis LSI
• Manufacturer: OKI [OKI electronic componets]

Status Read Timing
Table below shows the contents of each data output when reading the status of the channels.
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.
OKI Semiconductor
D7 to D0 (I/O)
CS (I)
RD (I)
Pin
D7
D6
D5
D4
D3
D2
D1
D0
“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)
Output status signal
Data Stable
ML2252/54-XXX, ML22Q54
FEDL2250DIGEST-01
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