EM78R911 Ver la hoja de datos (PDF) - ELAN Microelectronics
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componentes Descripción
Fabricante
EM78R911 Datasheet PDF : 37 Pages
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EM78911
8-bit micro-controller
ADDRESS REGISTER
00 R0
01 R1(TCC)
02 R2(PC)
03 R3(STATUS)
04 R4(RSR)
05 R5(ROM PAGE & R5)
06 R6(PORT6)
07 R7(PORT7)
08 R8(PORT8)
09 R9(PORT9)
0A RA(CLK,FSK)
0B RB(DTMF)
0C RC(2.5K RAM ADDRESS)
0D RD(2.5K RAM DATA)
0E RE(WDT)
0F RF(INT FLAG)
CONTROL REGISTER
(PAGE0)
page0
IOC6
IOC7
IOC8
IOC9
IOCA
IOCB(LCD ADDRESS)
IOCC(LCD DATA)
IOCD(PULL HIGH)
IOCE(IO, LCD)
IOCF(INT CONTROL)
CONTROL REGISTER
(PAGE1)
page1
IOCB(COUNTER1)
IOCC(COUNTER2)
IOCD(R-OPTION)
10 16X8
:
COMMON
1F REGISTER
RC(ADDRESS) RD(DATA)
20 BANK0 ~BANK3
:
32X8 ~32X8
3F REGISTER
0
:
255
BANK1 BANK2 …………..BANK10
256X8 256X8 …………….256X8
Fig.5 Data memory configuration
4. R3 (Status Register)
7
6
5
43
2
1
0
CAS PAGE - T P Z DC C
* Bit 0 (C) Carry flag
* Bit 1 (DC) Auxiliary carry flag
* Bit 2 (Z) Zero flag
* Bit 3 (P) Power down bit. Set to 1 during power on or by a "WDTC" command and reset to 0 by a "SLEP"
command.
* Bit 4 (T) Time-out bit. Set to 1 by the "SLEP" and "WDTC" command, or during power up and reset to 0 by
WDT timeout.
EVENT
T
P
REMARK
WDT wake up from
0
0
sleep mode
WDT time out (not sleep mode)
0
1
/RESET wake up from sleep
1
0
power up
1
1
Low pulse on /RESET
x
x
x .. don't care
* Bit 5 unused
* Bit 6 PAGE : change IOCB ~ IOCE to another page , 0/1 => page0 / page1
* Bit7 (CAS : CALL WAITING Output)
0/1= CW data valid/No data
6
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