ISD5100 – SERIES
Configuration Register 1 (CFG1)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D 6 D5 D4 D3 D2 D1 D0
VLS1 VLS0 VOL2 VOL1 VOL0 S1S1 S1S0 S1M1 S1M0 S2M1 S2M0 FLS0 FLD1 FLD0 FLPD AGPD
AGC AMP Power Down
Filter Power Down
SAMPLE RATE (& Filter) Set up (2 bits)
FILTER MUX Select
SUM 2 SUMMING AMP Control (2 bits)
SUM 1 SUMMING AMP Control (2 bits)
SUM 1 MUX Select (2 bits)
VOLUME CONTROL (3 bits)
VOLUME CONT. MUX Select (2 bits)
7.3.6. Power-up Sequence
This sequence prepares the ISD5100 Series for an operation to follow, waiting the Tpud time before
sending the next command sequence.
1.
2.
3.
4.
5.
6.
7.
8.
Send I2C POWER UP
Send one byte 10000000 {Slave Address, R/W = 0} 80h
Slave ACK
Wait for SCL High
Send one byte 10000000 {Command Byte = Power Up} 80h
Slave ACK
Wait for SCL High
Send I2C STOP
Playback Mode
The command sequence for an analog Playback operation can be handled several ways. The most
straightforward approach would be to incorporate a single four byte exchange, which consists of the
Slave Address (80h), the Command Byte (A9h) for Play Analog @ Address, and the two address
bytes.
Publication Release Date: October, 2003
- 21 -
Revision 0.2
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