SNC569 Ver la hoja de datos (PDF) - Sonix Technology Co., Ltd

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SNC569

Two Channel Direct Drive Speech Controller

Sonix Technology Co., Ltd 

SNC569

Two Channel Direct Drive Speech Controller

5.6. I/O Ports

P1 is a 4-bit input port, P2/P3/P6 are three 4-bit I/O ports and P4/P5 are two 4-bit

output ports. Any bit of P2, P3 and P6 can be programmed as either input or output

port individually. Any valid data transition (H L or L H) of P1, P2, P3 and P6

can reactivate the chip when the chip is in power-down mode.

To Internal Data Bus

PAD

Read Control

Weak

Input Port Configuration (P10~P13)

Port Data

Port Status

PAD

Weak

To Internal Data Bus

Read Control

I/O Port Configuration (P20~P23, P30~P33, P60~P63)

Ver: 1.3

4

August 26, 2003

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