15104P datasheet(27/88 Pages) WINBOND

Part #	15104P

Description	SINGLE-CHIP 1 TO 16 MINUTES DURATION VOICE RECORD/PLAYBACK DEVICES WITH DIGITAL STORAGE CAPABILITY

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Manufacturer	WINBOND [Winbond]

Direct Link	http://www.winbond.com

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27 / 88 page

ISD5100 – SERIES

Publication Release Date: October, 2003

- 27 -

Revision 0.2

6. Power up the VOLUME CONTROL LEVEL—Bit VLPD controls the power-up state of the

VOLUME CONTROL attenuator. This is Bit D0 of CFG0. This bit must be set to a ZERO to

power-up the VOLUME CONTROL.

7. Select a VOLUME CONTROL LEVEL—Bits VOL0, VOL1, and VOL2 control the state of the

VOLUME CONTROL LEVEL. These are bits D11, D12, and D13, respectively, of CFG1. A

binary count of 000 through 111 controls the amount of attenuation through that state. In most

cases, the software will select an attenuation level according to the desires of the current

users of the product. In this example, we will assume the user wants an attenuation of –12 dB.

For that setting, D11 should be set to ONE, D12 should be set to ONE, and D13 should be set

to a ZERO.

8. Select the VOLUME CONTROL path through the OUTPUT MUX—These are bits D3 and D4,

respectively, of CFG0. They should be set to the state where D3 is ZERO and D4 is a ZERO

to select the VOLUME CONTROL.

9. Power up the SPEAKER amplifier and select the HIGH GAIN mode—Bits OPA0 and OPA1

control the state of the speaker (SP+ and SP–) and AUX OUT outputs. These are bits D1 and

D2 of CFG0. They must be set to the state where D1 is ONE and D2 is ZERO to power-up the

speaker outputs in the HIGH GAIN mode and to power-down the AUX OUT.

To set up the chip for Memo or Call Playback, the configuration registers are set up as follows:

CFG0=0010 0100 0010 0010 (hex 2422).

CFG1=0101 1001 1101 0001 (hex 59D1).

Only those portions necessary for this mode are powered up.

7.3.11. Message Cueing

Message cueing allows the user to skip through analog messages without knowing the actual physical

location of the message. This operation is used during playback. In this mode, the messages are

skipped 512 times faster than in normal playback mode. It will stop when an EOM marker is reached.

Then, the internal address counter will be pointing to the next message.

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