AVxx32A Series

Rev 1.0

2003/02/12

2

Edege/Level; Hold/UnHold; Retrigger/Irretrigger.

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CPU_INTERFACE mode: Addressing access mode by input pulse count. In this mode, A1~A7

(ROW1~4, COL1~3) are disable, A8 (COL4) can be access up to 32 subtables.

(6). The A8 or M16 can be selected as NORMAL, SEQUENTIAL or CPU_INTERFACE. ( Mask option )

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NORMAL: normal mode as in item (5).

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SEQUENTIAL: can be selected to combine with MODE input or not. ( Mask option )

(A). If A8 or M16 is in SEQUENTIAL and is combined with MODE input:

MODE=0 : the device will response by one subtable sequentially and cyclically, from subtable1 to

user defined end subtable (subtable n, n=1~16).

MODE=1 : the device will response by one subtable sequentially and cyclically, from subtable 17

to user defined end subtable (subtable n, n=17~32).

The number of subtables (used in sequence) in MODE=1 and MODE=0 must be equal; this

number must be less than 16.

(B). If A8 or M16 is in SEQUENTIAL and is not combined with MODE input:

The device will response by one subtable sequentially and cyclically, from subtable1 to user

defined end subtable (subtable n, n=1~32).

The relationship between SEQUENTIAL ( A8/M16 ) and other inputs ( A1~A7 / M1~M15 ) can be

selected as RESET or UNRESET. ( Mask option )

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RESET: once the other inputs are triggered, the SEQUENTIAL sequence will reset to subtable 1.

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UNRESET: SEQUENTIAL sequence and other inputs are independent.

(7). Four STS pins have the following options: ( Mask option )

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OUT1: Cout (Current output) or STS1 output

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OUT2: PWM1 or STS2 output

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OUT3: PWM2 or STS3 output

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MODE/STS4: MODE selection or STS4 output

Cout has 3 current output levels: 1>1.5mA ; 2>3mA ; 3>4.5mA. ( full scale ; Vdd=3V )

PWM1 and PWM2 must be selected on the same time, they can directly drive buzzer or 8, 16, 32 or 64

ohms speaker.