EM78P915

8-bit Micro-controller

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* This specification is subject to be changed without notice.

2005/12/21 (V2.0)

Version History

Specification revision history for EM78P915

Version

Description

1.1

Add program pin location table

1.2

Pin assignment change, and POR=2.0V, green mode=2.2~5.5V

Oscillator start to stable time will smaller/equal 0.5 sec, remove LCD driving

Ability control

1.3

Add SDT characteristic table

R4 page bit7 (RBF) is modified to Read-only

“End of FSK to carrier detect high” is 5 ms

Update table 24

Modify R7, IOC7, IOCB, value in table 1

1.4

Add interrupt node, note7 and note8 in page3

1.5

Bug modify in page 21

1.6

Add notice about setting code-option and /POVD on/off in page 3.

1.7

Remove DED function, operation voltage = 3.1V at 10.74MHz

1.8

Modify TDP1/2 description in page 34

1.9

Add chip pad diagram, modify /POVD description

2.0

Add P915/915 family list and development tool list in appendix C, D, E, F

Relative to Rom-less, OTP and Mask

OTP

OTP/ROMLess

OTP

Note

78P911

78P808/78R808

78P915

Operation voltage

2.5~5.5V(normal mode) 2.2~5.5V(normal mode) 2.2V~5.5V(normal mode)

Work clock (Max)

3.58MHz

10.74MHz

10.74MHz

OP

X

Yes

X

Comparator

CMP1

CMP1, 2, 3

CMP1

Key tone

X

Yes

X

External INT

INT0~3

INT0~2

INT0, INT2

LCD

SEG0~59,

COM0~15

SEG0~79

COM0~23

SEG0~27,

SEG48~SEG79,

COM0~15

Data Rom

X

256K*8

X

RAM size

2.5K*8

8K*8

2.5K*8

Programmable ROM

16K*13

32K*13

32K*13

SDT

X

X

Yes

Stack

8

32

8

Bi-directional port

36

51

44

DTMF generator

Yes

TONE generator

Current D/A

DTMF receiver

X

Yes

Yes

Current D/A

X

Yes

Yes

MEI/RTF

X

X

X

Call waiting

Yes

Yes

Yes

Low battery detect

Yes

Comparator

Comparator

SPI

X

Yes

Yes

FSK decode

Yes

Yes

Yes