EM78569 Ver la hoja de datos (PDF) - ELAN Microelectronics

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componentes Descripción

Fabricante

EM78569

8-BIT MICRO-CONTROLLER

ELAN Microelectronics 

Version History

Specification Revision History

Version Content

EM78569

1.0

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

4.0

Initial version

Modify Multiplier architecture

1. Move DARES bit from bit7 to bit3.

2. Change instruction “MUL” Æ “INT A”

3. Modify Sink/Driver current

1. Update Application Note

2. Add 17.91MHz main CLK

1. Add data RAM address auto-increase function

2. Add mclk/2 signal output. (output shared with PC0)

3. Add carry bit calculation function.(ADD, SUB)

1. Modify code option define.

1. ADD the description about ADC’s offset voltage

1. Decrease stack from 16 to 12

2. Modify the operating temperature

3. Modify Port9 sink/driver current

Add the OSC stable and reset timing diagram

Modify Normal mode power consumption

Remove IDLE mode

Modify operating temperature

Release Date

2002/06/10

2003/3/10

2003/5/2

2003/6/9

2003/8/1

2003/9/17

2003/10/22

2004/4/10

2004/7/2

2004/8/19

2004/8/31

User Application Note

(Before using this chip, take a look at the following description note, it includes important messages.)

1. There are some undefined bits in the registers. The values in these bits are unpredicted. These bits are not allowed to

use. We use the symbol “-” in the spec to recognize them.

2. You will see some names for the register bits definitions. Some name will be appear very frequently in the whole spec.

The following describes the meaning for the register’s definitions such as bit type, bit name, bit number and so on.

RA

PAGE0

7

6

5

4

3

RAB7 RAB6 BAB5 RAB4

-

R/W-0 R/W-0

R-1 R/W-1

2

RAB2

R

1

RAB1

R-0

0

RAB0

R/W

Bit type

read/write

(default value=0)

read/write

(default value=1)

read only

(w/o default value)

read/write

(w/o default value)

Bit name

Bit number

Register name and its page

read only

(default value=1)

(undefined) not allowed to use

read only

(default value=0)

3. Please set 1 to RA page2 bit7 or LCD waveform will difference between mask and romless.

4. Please set IOCC PAGE1 bit0 to “1” otherwise partial ADC function cannot be used

5. For 8 bits resolution DAC, DAO pin will output corresponding voltage after write new data to DAC data buffer(RA

PAGE1). For 10 bits resolution, DAO pin will output constant after change DAC most significant 2 bits (R5 PAGE1

bit6~7). DAO will output correct voltage after write data to least significant 8 bits. That is to say, when using 10 bits

resolution DAC, user must write most significant 2 bits and least significant 8 bits in order.

6. Base on “VERSEL”(code option) equal 0 or 1, R8 page1 and RB page2’s define are different.

“VERSEL” = 0: R8 page1 defined to data RAM address buffer

RB page2 defined to multiplier’s Y data or Y address buffer (controlled by RA page2 bit5 “INDR”).

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