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EM78P813BQ Datasheet(PDF) 24 Page - ELAN Microelectronics Corp

Part # EM78P813BQ
Description  8-BIT OTP MICRO-CONTROLLER
Download  65 Pages
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM78P813BQ Datasheet(HTML) 24 Page - ELAN Microelectronics Corp

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EM78P813
8-bit OTP Micro-controller
__________________________________________________________________________________________________________________________________________________________________
* This specification is subject to change without notice.
24
2004/8/19
(V1.6)
TONE
TONE
EST
ST/GT
Vtst
1/2 VDD
Q4..Q1
STD
LINE_ENG
Tdp
5~20mS
by S/W
Tgta
30mS Typ.
Tgtp
30mS Typ.
Tpq
8 uS Typ.
Fig.17
DTMF receiver timing.
Bit 7 (CMPFLAG) : Comparator output flag
0
Input voltage < reference voltage
1
Input voltage > reference voltage
<Note>Please refer to RA page 2 comparator control register .
PAGE3 SPI Data buffer
7
6
5
4
3
2
1
0
SPIB7
SPIB6
SPIB5
SPIB4
SPIB3
SPIB2
SPIB1
SPIB0
Bit 0 ~ Bit 7 (SPIB0 ~ SPIB7) : SPI data buffer
If you write data to this register, the data will write to SPIW register. If you read this data, it will read the data
from SPIR register. Please refer to Fig.9
R9 Port 9 I/O Data , LCD address MSB , Data ROM address ,OP , Key tone control,
PAGE0 Port 9 I/O Data
7
6
5
4
3
2
1
0
P97
P96
P95
P94
P93
P92
P91
P90
Bit 0 ~ Bit 7 (P90 ~ P97) : 8-bit PORT9 ( 0~7 ) I/O data register
User can use IOC register to define input or output each bit.
PAGE1 LCD address MSB , Data ROM address
7
6
5
4
3
2
1
0
LCDA8
DRA20
DRA19
DRA18
DRA17
DRA16
Bit 0 ~ Bit 4 (DRA16 ~ DRA20) : Data ROM address(16~20) for ROM reading..
Bit 5~Bit 6 : Unused
Bit 7 (LCDA8) : MSB of LCD address for internal LCD RAM reading or writing
Other LCD address bits LCDA7 ~ LCDA0 are set from RA PAGE1 Bit 7 ~ Bit 0.
For LCD address access over 0xFFH, set this bit to “1”; otherwise set this bit to “0”.


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