EM73A83 Datasheet, PDF(28/40 Page) ELAN Microelectronics Corp – 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

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EM73A83 Datasheet, PDF (28/40 Pages) ELAN Microelectronics Corp – 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

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EM73A83

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

Preliminary

EM73A83 I/O PORT DESCRIPTION :

Port

14 I

Input function

Input port , wakeup function

Input port

P5.3 : Speech active signal (ACT)

DATA ROM data

Input port, wakeup function,

external interrupt input

CPU status register

Output function

I P3(1..0) : ROM bank selection

E Output port

I Speech sample rate register

I Speech start address register

I Data start address register

E Output port

I P9.3 : RAM bank selection

I STOP mode control register

I Sound effect volume control register

I IDLE mode control register

I WDT control register

I DUAL/SLOW mode control register

I Sound effect frequency register

I Timebase control register

I LCD common start address register

I LCD control register

I Timer/counter A control register

I Timer/counter B control register

I Sound effect command register

Note

low nibble

high nibble

* This specification are subject to be changed without notice.

10.31.2000 28

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