Integrated Circuits Inc.

aP23682/341/170/085 8PIN

Ver 2.5.1

13

May 24 2016

(1). Load Voice Group Address :

a. Command timing reference Fig.10 SPI Command timing.

b. D9 to D0 total 10 bits to be the Group Address.

c. The Load signal will become logic LOW once the Voice Group is played and the address buffer

is released and ready for next Play action.

(2). Play Voice Group Address :

a. Command timing reference Fig.10 SPI Command timing.

b. D9 to D0 total 10 bits to be the Group Address.

c. Playing assign group address immediately.

(3). Power up with RAMP-UP(PU2) or without RAMP-UP(PU1) :

a. Command timing reference Fig. 11 Power-Up command timing.

b. PU1 : will power-up the chip and set the VOUT to center value immediately and stay there.

c. PU2 : will power-up the chip and ramp-up COUT from bottom to center value and stay there.

(4). Power-down with RAMP-DOWN(PD2) or without RAMP-DOWN (PD1) :

a. Command timing reference Fig. 12 Power-Down command timing.

b. PDN1 will power-down the chip and set the VOUT data to bottom value immediately.

PDN1 will be executed correctly only if PU1 is executed before.

c. PDN2 will power-down the chip and ramp-down the COUT from its current to bottom value.

PDN2 will be executed correctly only if PU2 is executed before.

(5). Volume Set (VOL[3:0]) :

a. Command timing reference Fig.10 SPI Command timing.

b. D3 to D0 total 4bits(0 ~ 15) set volume level (max : 0, min : 15).

(6). Volume - - (VOL--) :

a. Command timing reference Fig.10 SPI Command timing.

b. Set volume level decrease.

(7). Volume + + (VOL++) :

a. Command timing reference Fig.10 SPI Command timing.

b. Set volume level increase.

(8). Pause and Resume (PAUSE; RESUME) :

a. Command timing reference Fig.10 SPI Command timing.

b. In Pause state, VOUT1 and VOUT2 will stay at logic LOW while the COUT will stay at

the current D/A data level. When Resume, the COUT data will continue at the current D/A data level.

a. Command timing reference Fig.10 SPI Command timing.

b. Play the current Voice Group from it is beginning.