SNC207S
Direct Drive Speech Controller
5.6. Event Mark
This is a new function for SNC207S, it allows user to add a special mark in wave data
by the voice edit tool “CoolEdit”. User can insert event tags in anywhere of his wave
file and can easy to get this special code to do his special action during voice playing.
That means, it should be easily to control the I/O (such as LED or motor) and other
actions to synchronize with voice.
5.7. I/O Ports
P30~P33 and P20~P21 are I/O pins. Any bit of them can be programmed as either
input or output port individually. Any valid data transition (Hꢁ L or LꢁH) of P30~P33
and P20~P21 can reactivate the chip when the chip is in power-down mode.
Port Data
PAD
Port Status
Weak
To Internal Data Bus
Read Control
I/O Port Configuration (P30~P33, P20~P21)
Note:
(1) Weak N-MOS’s can serve as pull-low resistors.
(2) The driving and sink current of P3.2 and P3.3 are enhance to be 8mA/16mA.
So user can direct to drive the LED through those two I/O pins.
5
Ver: 0.3
Sept 20, 2007
SONIX [ SONIX TECHNOLOGY COMPANY ]
