msm6679a-110 Oki Semiconductor, msm6679a-110 Datasheet - Page 11

• Manufacturer Part Number: msm6679a-110
• Description: Si/sd Voice Recognizer, Recorder/player, And Speech Synthesizer
• Manufacturer: Oki Semiconductor

¡ Semiconductor
100-pin
84-pin/
-/25,26
Pin #
25/17
26/18
27/19
28/20
29/21
30/22
31/23
32/24
33/27
34/28
35/29
36/30
37/31
38/32
39/33
40/34
41/35
42/37
43/39
44/40
45/41
46/42
47/43
48/44
-/36
-/38
VOICEOUT1
Pin Name
WRRAM
RESOUT
ROMRD
RDRAM
N/C–
NAR
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
VDD
A10
A11
A12
A13
N/C
N/C
N/C
N/C
ES
A8
A9
(do not connect)
Bidirectional I/O
(not connected)
(not connected)
(not connected)
Signal Type
Digital Power
Outputs
Output
Output
Output
Output
Output
Output
Input
Input
ROM Read. This is a strobe signal for direct connection to an external
ROM's READ input. When asserted LOW, this signal indicates that the
MSM6679A-110 is ready to read data from the ROM.
RAM Write. This is a strobe signal for direct connection to an external
RAM's WR input. When asserted LOW, this signal indicates that the
MSM6679A-110 is ready to write data to RAM.
RAM Read. This is a strobe signal for direct connection to an external
RAM's RD input. When asserted LOW, this signal indicates that the
MSM6679A-110 is ready to read data from RAM.
Reserved. This pin is reserved for future use and must be tied to GND.
MSM665x Reset. This pin provides a reset signal for an external
speech synthesis engine.
Flash Bank Control (Extended Segments). This is the control signal for
flash memory banking.
MSM665x Next Address Request. This pin signals to the
MSM6679A-110 that the external speech synthesis engine is ready for
another command.
Reserved. These pins are reserved for future use and must be left open.
Reserved. These pins are reserved for future use and should be left open.
Voice Out. This pin is the PWM output for speech synthesis, voice
sample playback, and voice prompts. An external integrator must be
used to convert this to an analog signal.
Memory Address/Data Bus. These are multiplexed address/data lines
for the eight data bits and the lower eight address bits (the upper eight
address bits are not multiplexed).
Reserved. This pin is reserved for future use and should be left open.
Power.
Reserved. This pin is reserved for future use and should be left open.
Memory Address Bus. These are the upper eight address pins.
MSM6679A-110 Voice Recognition Processor
Description
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