ISD4004-12MSY Nuvoton Technology Corporation of America, ISD4004-12MSY Datasheet - Page 13
![IC VOICE REC/PLAY 12MIN 28-SOIC](/photos/6/98/69887/256-28-soic_sml.jpg)
ISD4004-12MSY
Manufacturer Part Number
ISD4004-12MSY
Description
IC VOICE REC/PLAY 12MIN 28-SOIC
Manufacturer
Nuvoton Technology Corporation of America
Series
ISD4004r
Datasheet
1.ISD4004-08MEY.pdf
(38 pages)
Specifications of ISD4004-12MSY
Interface
SPI/Microwire
Filter Pass Band
2.3kHz
Duration
12 Min
Mounting Type
Surface Mount
Package / Case
28-SOIC (0.300", 7.50mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Microcontroller Interface
A four-wire (SCLK, MOSI, MISO & SS ) SPI interface is provided for controlling and addressing
functions. The ISD4004 is configured to operate as a peripheral slave device, with a microcontroller-
based SPI bus interface. Read and write operations are controlled through this SPI interface. An
interrupt signal ( INT ) and internal read only Status Register are provided for handshake purposes.
Programming
The ISD4004 series is also ideal for playback-only applications, where single- or multiple-messages
playback is controlled through the SPI port. Once the desired message configuration is created,
duplicates can easily be generated via a programmer.
The ISD4004 series operates via SPI serial interface with the following protocol.
First, the data transfer protocol assumes that the microcontroller’s SPI shift registers are clocked on
the falling edge of the SCLK. However, for the ISD4004, the protocols are as follows:
6.2. S
1. All serial data transfers begin with the falling edge of SS pin.
2.
3. Data is clocked in on the rising edge of the SCLK signal and clocked out on the falling edge of
4. Playback and record operations are initiated when the device is enabled by asserting the SS
5. The opcodes contain <16 address bits> and <8 control bits>.
6. Each operation that ends with an EOM or Overflow will generate an interrupt. The Interrupt will
7. As Interrupt data is shifted out of the MISO pin, while address and control data are
8. An operation begins with the RUN bit set and ends with the RUN bit reset.
9. All operations begin after the rising edge of SS .
the SCLK signal, with LSB first.
pin LOW, shifting in an opcode and an address data to the ISD4004 device (refer to the
Opcode Summary in the following page).
be cleared the next time a SPI cycle is initiated.
simultaneously shifted into the MOSI pin. Care should be taken such that the data shifted in is
compatible with current system operation. Because it is possible to read an interrupt data and
start a new operation within the same SPI cycle.
SS is held LOW during all serial communications and held HIGH between instructions.
ERIAL
P
ERIPHERAL
I
NTERFACE
(SPI) D
ESCRIPTION
- 13 -
Publication Release Date: Oct 31, 2008
ISD4004 SERIES
Revision 1.31