SNC710
16-bit Voice Engine
4.4 I/O Port
SNC710 provides one a 16-bit I/O port and an 8-bit input port for user application
(P0.0~P0.15, P1.0~P1.7). The input pull high resistor of each pin can be programmed
by Port Pull-High register. The direction of I/O port is selected by Port Direction
register. The Port0 (P0.0~P0.15) and Port1 (P1.0~P1.7) can wake the chip up from the
stop mode and watch mode. And P0.15 Modulated with a carry signal
Pull-Up
Resister
Pull-Up
Select
In/Out
Control
PAD
Latch
to internal bus
In/Out
Control
I/O Configuration of P0.0~P0.15
Pull-Up
Resister
Pull-Up Select
PAD
Digital In
Input Control
Input Port Configuration of Port 1 (P1.0~P1.7)
Ver. 1.4
7
July 30, 2003
SONIX [ SONIX TECHNOLOGY COMPANY ]
