8-bit MCU
Description
EM78P803A
8-bit MCU
2005/8/12 Version 1.
3.
3
ELAN MICROELECTRONICS CORP.
No.
12, Innovation 1st RD.
, Science-Based Industrial Park Hsin Chu City, Taiwan TEL: (03) 5639977 FAX: (03) 5780617
Version History
Version 1.
0 1.
1
1.
2 1.
3
1.
3.
1 1.
3.
3
1.
2.
1.
2.
3.
1.
2.
1.
2.
3.
4.
1.
1.
2.
3.
4.
5.
Content
Initial version Original Spec.
is oriented from EM78805C v2.
0 spec
Modified the LCD driving waveform of 1/3 bias Add internal clock source for R to F Counter Add option code for supporting 16-bit counter mode
Modified ERIC mode function Modified pad assignment
Modified the configuration of PLL Modified the selection of CNT2 source Fix up the bug in R to F macro Modified the setup of Low Battery Detect
Modified the operating voltage range
Modified the table of sub frequency divider.
Modified the definition of R2FHR option code.
Modified the power consumption and reset level on POVD function (in product spec.
, not in target spec.
) Modified the definition of P803ON option code Modified the product no.
of 64-pin QFP
Release Date 2004/03/29 2004/05/26
2004/6/30 2004/11/30
2004/12/3 2005/8/12
User Application Note
(Before using this chip, take a look at the following description note, it includes important messages.
)
1.
There are some undefined or not existent bits in the registers.
For these bits, user need to take more care on them while program use them as data to execute logic or math operations.
Because these bits are not relative to chip function, they never test in the factory.
We use different symbols to recognize them.
“0” or “1” Î value always equal to 0 or value always equal to 1, (not existent, read only) “-“ Î value unknown, (not existent) undefined bits do not allow to use.
“x” Î (general purpose) undefined bits do not allow to use as RAM or other data read, write or read/write.
2.
You will see some names for the register bits definitions.
Some name will appear very frequently in the whole spec.
The following describes the meaning for the register’s defini...
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