ISD5008 Datasheet, PDF (18/47 Pages) List of Unclassifed Manufacturers – SINGLE CHIP VOICE RECORD PLAYBACK DEVICE 4-, 5-, 6-, AND 8- MINUTE DURATIONS

ISD5008 Product
4.3 SPI PORT
The following diagram describes the SPI port and the control bits associated with it.
Figure 12: SPI Port
NOTE: Bytes 1 and 2 of the MOSI input may be address bits or configuration bits, depending on the selected mode
in byte 3.
4.4 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, Ignore Address Pointers and Load Con-
figuration Registers.
Control
Register
Bit
Table 7: SPI Control Register
Device Function
Control
Register
Bit
Device Function
RUN
Enable or Disable an operation
PU
Master power control
=1
=0
Start
Stop
= 1 Power-Up
= 0 Power-Down
P/R
Selects Play or Record operation
IAB
Ignore address control bit
=1
=0
Play
Record
=1
=0
Ignore input address register (A15–A0)
Use the input address register contents
for an operation (A15–A0)
MC
Enable or Disable Message Cueing A15–A0
Output of the row pointer register
=1
=0
Enable Message Cueing
Disable Message Cueing
D15–D0
Input control and address register
LC0
LC1
=1
=0
Load Configuration Reg 0
No Load
= 1 Load Configuration Reg 1
= 0 No Load
ISD
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