Integrated Circuits Inc.

aP89042

Ver 3.2

May 31, 2007

6

Programmable Options

In both Key Trigger Mode and CPU Parallel Trigger Mode, user can select different trigger functions

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

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

playback of individual Voice Group are called Group Options.

Whole Chip Options

• Key or CPU Parallel Trigger Mode.

• 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 beginning 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 and OUT2 to send out different signals during

voice playback. Four settings are allowed:

OUT1

OUT2

OUT3

Option 1

LED2

LED1

BUSY

Option 2

STOP

LED1

LED2

Option 3

LED1

BUSY

STOP

Option 4

LED1

BUSY

/BUSY

Note: Stop plus and BUSY must be set to enable in order to have STOP

plus and BUSY high to come out.

Fig. 3 Output waveforms