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EM78P813BQ Datasheet(PDF) 24 Page - ELAN Microelectronics Corp |
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EM78P813BQ Datasheet(HTML) 24 Page - ELAN Microelectronics Corp |
24 / 65 page 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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