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SC-691
Data sheet
4
P/N 80-0211-C
© 2003 Sensory Inc.
SC-691 (4-bit mode)
SC-691 (8-bit mode)
Number of data lines
4
8
Number of control lines
3 (STROBE_, R/W_, data/command)
2 (STROBE_, R/W_)
Number of status lines
2 (INRDY_, OUTRDY_)
2 (INRDY_, OUTRDY_)
Number of general-purpose I/O lines
4
4
Support for commands (while speaking)
Yes
No
Figure 1: Interfacing Diagram 4-Bit Mode
Note:
STROBE_
Active low STROBE_ signal from microcontroller
R/W_
Read/write signal from microcontroller
RESET_
Active low RESET_ signal from microcontroller
DATA0–
DATA3 Data bits 0 through 3
PD4–PD7
General-purpose I/O bus
DACP
Output to speaker/amplifier
DACM
Output to speaker/amplifier
DATA/COMMAND
This bit determines if the data sent by the microcontroller is data or command.
Figure 2: Interfacing Diagram 8-Bit Mode
Note:
STROBE_
Active low STROBE_ signal from microcontroller
R/W_
Read/write signal from microcontroller
RESET_
Active low RESET_ signal from microcontroller.
INRDY_
Active low indicates that the SC-691 is ready to accept data.
OUTRDY_
Active low indicates that the SC-691 is ready to send data.