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EM78P813BQ Datasheet(PDF) 29 Page - ELAN Microelectronics Corp |
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EM78P813BQ Datasheet(HTML) 29 Page - ELAN Microelectronics Corp |
29 / 65 page ![]() EM78P813 8-bit OTP Micro-controller __________________________________________________________________________________________________________________________________________________________________ * This specification is subject to change without notice. 29 2004/8/19 (V1.6) : : : : : Address 1EEH Address 16EH Address 0EEH Address 06EH SEG110 Address 1EFH Address 16FH Address 0EFH Address 06FH SEG111 Address 1F0H Address 170H Address 0F0H Address 070H Empty : : : : : Address 1FFH Address 17FH Address 0FFH Address 07FH Empty PAGE2 Comparator control Register 7 6 5 4 3 2 1 0 CMPEN CMPREF CMPS1 CMPS0 CMPB3 CMPB2 CMPB1 CMPB0 If user define PORT63 , PORT64 or PORT65 (by CMPIN1, CMPIN2, CMPIN3 at R9 page2) as a comparator input or PORT6. User can use this register to control comparator's function. Bit 0~Bit 3(CMPB0 ~ CMPB3) : Reference voltage selection of internal bias circuit for comparator. Reference voltage for comparator = VDD x ( N + 0.5 )/ 16 , N = 0 to 15 Bit 4~Bit 5(CMPS0~CMPS1) : Channel selection from CMP1 to CMP3 for comparator CMPS1 CMPS0 Input 0 0 CMP1 0 1 CMP2 1 0 CMP3 1 1 Reserved Bit 6(CMPREF) : Switch for comparator reference voltage type 0 internal reference voltage 1 external reference voltage Bit 7(CMPEN) : Enable control bit of comparator. 0/1 disable/enable, When CMPEN bit set to “0” , 2.0V ref circuit will powered off. The relation between these registers shown in Fig.20. |
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