Integrated Circuits Inc.

aP89341/170/085

Ver 5.0

5

Aug 23, 2010

Programmable Options

In Key Trigger Mode (M1=0; M0=0) and CPU Parallel Trigger Mode (M1=0; M0=1), user can select

different trigger functions and output signals to be sent out from the pins OUT1, OUT2 and OUT3.

Options that affect all Voice Group playback are called Whole Chip Options. Options that only affect

the playback of individual Voice Group are called Group Options.

Whole Chip Options

• Long (16ms) or short (65us) debounce time at 8KHz sampling rate.

• Ramp-up-down enable or disable:

When COUT is used for playback, Ramp-up-down should be enabled.

This function

eliminates the ‘POP’ noise at the begin and end of voice playback.

When VOUT1 and VOUT2 are used to drive speaker directly, Ramp-up-down should be

disabled.

Fig. 1 Ramp-up-down Enable

Fig.2 Ramp-up-down Disable

• Output Options:

This option sets up the three output pins OUT1, OUT2 and OUT3 to send out different signals

during voice playback. Four settings are allowed:

OUT1

OUT2

OUT3

Option 1

LED1

LED2

BUSY

Option 2

STOP

LED1

LED2

Option 3

LED1

BUSY

STOP

Option 4

LED1

BUSY

BUSYB

Note: BUSY can be set or reset associated with each Voice Block. Stop plus must be set to

enable in order to have STOP plus to come out at the end of playback.

Fig. 3 Output waveforms