ml2251 Oki Semiconductor, ml2251 Datasheet - Page 24

• Manufacturer Part Number: ml2251
• Description: 2-channel Mixing Oki Adpcm Algorithm-based Speech Synthesis Lsi
• Manufacturer: Oki Semiconductor

Commands List
Each command is 1-byte (8 bits) input. PLAY, MUON, and FLASH I/F only are 2 bytes input.
C1, C0:
F7 to F0:
M7 to M0:
X0:
V4 to V0:
RD, WR, SE, BE:
OKI Semiconductor
Command
Flash I/F
PDWN1
PDWN2
SLOOP
CLOOP
START
MUON
FADR
STOP
PUP1
PUP2
PLAY
VOL
EXT
M7
M7
D7
F7
V7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
Channel specification (C0 = “1”: Channel 1; CH = “1”: Channel 2; C0, C1 = “1”:
Channel 1, Channel 2)
Phrase address
Silence time length
Releases the repeated playback
Sound volume
Mode (RD = “1”: Read data; WR = “1”: Write data; SE = “1”: Erase sector; BE = “1”:
Erase block)
M6
M6
D6
F6
V6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
M5
M5
D5
V5
F5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
M4
M4
D4
F4
V4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
M3
M3
BE
D3
F3
V3
0
0
0
0
0
0
0
0
0
0
0
0
0
M2
M2
SE
D2
V2
F2
0
0
0
0
0
0
0
0
0
0
0
0
0
WR
M1
M1
D1
C1
F1
C1
C1
C1
C1
C1
C1
C1
V1
0
0
0
0
0
RD
M0
M0
D0
C0
C0
C0
C0
C0
C0
C0
C2
V0
F0
0
0
0
0
0
Instantly shifts the power down device to the
command standby state.
Suppresses pop noise and shifts the power
down device to the command standby state.
Instantly shifts the device from the command
standby state to the power down state.
Suppresses pop noise and shifts the device
from the command standby state to power down
state.
Inputs the phrase after the playback channel is
specified, and then starts the playback.
Playback start command with phrase
specification. Inputs the phrase after the
playback channel is specified, and then starts
the playback.
Playback start command without phrase
specification. Inputs the phrase with the FADR
command and starts the playback on multiple
channels at the same time.
Phrase specification command.
With this command, specifies the playback
phrase for each channel.
Specifies the finish channel and ends the voice.
Inserts silence time after specifying the channel
to insert silence, and then inserts silence.
Repeats the playback mode setting command.
Effective only for the channel being used for
playback.
Repeat playback mode releasing command.
Inputting the STOP command releases repeat
playback mode automatically.
Specifies the channel whose sound volume is to
be set, and then sets the volume of that channel.
Inputs voice data from the CPU I/F to play it
back.
Performs data read/write/erase of the built-in
flash memory. This command cannot be used
while the playback is going on. (Applicable to the
ML22Q54/Q58.)
Description
FEDL2250DIGEST-06
ML2250 family
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