EM73469A 查看數據表（PDF） - ELAN Microelectronics

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EM73469A

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

ELAN Microelectronics 

P19

32

10

IDME

SIDR

EM73469A

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

Preliminary

Initial value : 0000

IDME

01

**

Enable IDLE mode

Enable IDLE mode

Reserved

SIDR

00

01

10

11

Select IDLE releasing condition

P0(0..3), P8(0..3) pin input

P0(0..3), P8(0..3) pin input and 1 sec signal

P0(0..3), P8(0..3) pin input and 0.5 sec signal

P0(0..3), P8(0..3) pin input and 15.625 ms signal

STOP OPERATION MODE

The STOP operation mode suspends system operation and holds the internal status immediately before the

suspension with low power consumption. This mode will be released by reset or I/O pins (P0(0..3)/

WAKEUP 0..3 or P8(0..3)/WAKEUP A..D).

LCD display and high speed timer/counter with melody output are disabled in the mode.

P16 3 2

SPME

1

0

SWWT

Initial value : 0000

SPME

01

**

Enable STOP mode

Enable STOP mode

Reserved

TIME BASE INTERRUPT ( TBI )

SWWT

00

01

10

11

Set wake-up warm-up time

wait normal frequency ready (26/fc)

wait slow frequency ready (214/fs)

Reserved

Reserved

The time base can be used to generate a fixed frequency interrupt. There are 8 kinds of frequencies can be

selected by setting P25.

P25 3 2 1 0

initial value : 0000

P25

NORMAL operation mode

00xx

0100

0101

0110

0111

1100

1101

1110

1111

10xx

Interrupt disable

Interrupt frequency LXIN / 23 Hz

Interrupt frequency LXIN / 24 Hz

Interrupt frequency LXIN / 25 Hz

Interrupt frequency LXIN / 214 Hz

Interrupt frequency LXIN / 21 Hz

Interrupt frequency LXIN / 26 Hz

Interrupt frequency LXIN / 28 Hz

Interrupt frequency LXIN / 210 Hz

Reserved

TIMER / COUNTER ( TIMERA, TIMERB )

SLOW operation mode

Interrupt disable

Reserved

Reserved

Reserved

Interrupt frequency LXIN / 214 Hz

Reserved

Interrupt frequency LXIN / 26 Hz

Interrupt frequency LXIN / 28 Hz

Interrupt frequency LXIN / 210 Hz

Reserved

Timer/counters can support user three special functions:

1. Even counter

2. Timer.

3. Pulse-width measurement.

* This specification are subject to be changed without notice.

1.9.2001 14

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