ISD4004-08MX Winbond, ISD4004-08MX Datasheet - Page 11

• Manufacturer Part Number: ISD4004-08MX
• Description: Single-Chip Voice Record/Playback Devices 8-/ 10-/ 12-/ and 16-Minute Durations
• Manufacturer: Winbond

SPI PORT
The following diagram describes the SPI port and the control bits associated with it.
SPI CONTROL REGISTER
The SPI control register provides control of individual device functions such as Play, Record, Message
Cueing, Power-Up and Power-Down, Start and Stop operations, and Ignore Address pointers.
ISD
RUN
P/R
MC
Register
Control
=
=
=
=
=
=
1
0
1
0
1
0
Bit
Enable or Disable an operation
Start
Stop
Selects Play or Record operation
Play
Record
Enable or Disable Message Cueing P15–P0
Enable Message Cueing
Disable Message Cueing
Device Function
Table 3: SPI Control Register
Figure 3: SPI Port
PU
IAB
A15–A0
Register
Control
=
=
=
=
1
0
1
0
Bit
Ignore address control bit
Master power control
Power-Up
Power-Down
Ignore input address register (A15–A0)
Use the input address register contents
for an operation (A15–A0)
Output of the row pointer register
Input address register
Device Function
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