W528SXX Datasheet, PDF (11/15 Pages) Winbond – ADPCM VOICE SYNTHESIZER(PowerSpeech)

W528SXX
b. Level-Hold Trigger Mode
0: LD EN, 0x11
; Enable TG1 rising/falling edge input.
H4 + sound1 + T4
JP 0
; Repeat sound1 until TG1 key released.
4: END
; As soon as TG1 key is released, execute this group entry.
The timing diagram is shown below:
case 1:
TG1:
case 2:
TG1:
AUD:
Stop Immediately
AUD:
Sound 1
Stop Immediately
c. Complete-Cycle Level Hold
0: LD EN, 0x01
; Enable TG1 falling edge only.
H4 + sound1 + T4
JP 0 @TG1_LOW ; If TG1 status is low level voltage (trigger is pressed), then j ump
to 0;
if not, execute next instruction (END).
END
The timing diagram is shown below:
case 1:
TG1:
case 2:
TG1:
AUD:
Sound 1
AUD:
Sound 1 Sound 1
d. Single-Cycle Level Hold
0: LD EN, 0x11
; Enable both falling and rising edge input of TG1.
H4 + sound1 + T4
END
•
•
•
4: END
; As soon as TG1 is key released, execute this group entry.
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Publication Release Date: Nov 2000
Revision A1