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EM78911 Datasheet(PDF) 9 Page - ELAN Microelectronics Corp |
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EM78911 Datasheet(HTML) 9 Page - ELAN Microelectronics Corp |
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9 / 37 page  9 EM78911 EM78911 EM78911 EM78911 8 88 8- -- -bit micro bit micro bit micro bit micro- -- -controller controller controller controller * Bit7 IDLE: sleep mode selection bit 0/1=sleep mode/IDLE mode. This bit will decide SLEP instruction which mode to go. These two modes can be waken up by TCC clock or Watch Dog or PORT9 and run from “SLEP” next instruction. Wakeup signal SLEEP mode IDLE mode GREEN mode NORMAL mode RA(7,6)=(0,0) + SLEP RA(7,6)=(1,0) + SLEP RA(7,6)=(x,0) no SLEP RA(7,6)=(x,1) no SLEP TCC time out X Wake-up + Interrupt + Next instruction Interrupt Interrupt WDT time out RESET Wake-up + Next instruction RESET RESET Port9 /RINGTIME pin RESET Wake-up + Next instruction X X PORT70~73 X Wake-up + Interrupt + Next instruction Interrupt Interrupt *P70 ~ P73 's wakeup function is controlled by IOCF(1,2,3) and ENI instruction. *P70 's wakeup signal is a rising or falling signal defined by CONT REGISTER bit7. */RINGTIME pin , Port9 ,Port71,Port72 and Port73 's wakeup signal is a falling edge signal. 8. RB(DTMF tone row and column register) (read/write) 7 6 5 4 3 2 1 0 c7 c6 c5 c4 r3 r2 r1 r0 * Bit 0 - Bit 3 are row-frequency tone. * Bit 4 - Bit 7 are column-frequency tone. * Initial RB is equal to high. Bit 7 ~ 0 are all "1" , turn off DTMF power . bit 3~0 Row freq 1110 699.2Hz 1 2 3 A 1101 771.6Hz 4 5 6 B 1011 854Hz 7 8 9 C 0111 940.1Hz * 0 # D Column freq 1203Hz 1331.8Hz 1472Hz 1645.2Hz bit 7~4 1110 1101 1011 0111 9. RC(CALLER ID address)(read/write) 7 6 5 4 3 2 1 0 CIDA7 CIDA6 CIDA5 CIDA4 CIDA3 CIDA2 CIDA1 CIDA0 * Bit 0 ~ Bit 7 select CALLER ID RAM address up to 256. 10. RD(CALLER ID RAM data)(read/write) * Bit 0 ~ Bit 8 are CALLER ID RAM data transfer register. User can see IOCA register how to select CID RAM banks. |
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