EM78811 Просмотр технического описания (PDF) - ELAN Microelectronics
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EM78811 Datasheet PDF : 33 Pages
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EM78811
8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT
00
R0
01
R1(TCC)
02
R2(PC)
03
R3(STATUS)
04
R4(RSR)
05
R5(Program Page)
06
R6(PORT6)
07
R7(PORT7)
08
R8(PORT8)
09
R9(PORT9)
0A
RA(FSK STATUS)
0B
RB(DTMF)
0C
RC(CID ADRESS)
0D
RD(CID DATA)
0E
RE(LCD,WDT,WUE)
0F
RF(INTERRUPT)
IOC6
IOC7
IOC8
IOC9
IOCA(RAM,IO,PAGE ctl )
IOCB(lcd address )
IOCC(lcd data )
IOCD(PULL HIGH control)
IOCE(IO,Vlcd control )
IOCF(interrupt control)
10
16x8
:
Common
1F
Register
20
00 BANK0 01 BANK1 10 BANK2 11 BANK3
:
32X8
32X8
32X8
32X8
3F
REGISTER REGISTER REGISTER REGISTER
IOCB(COUNTER1)
IOCC(COUNTER2)
IOCE(OTHER )
IOCB IOCC
CALLER RAM
0000 0001 0010 0011 0100 0101 0110 0111 1000 1001
00h BAND1 BAND2 BAND3 BAND4 BAND5 BAND6 BAND7 BAND8 BAND9 BAND10
: 256X8 256X8 256X8 256X8 256X8 256X8 256X8 256X8 256X8 256X8
ffH
Fig.5 Data memory configuration
00h LCD RAM
: 120x8
:
:
78h
R3 ( Status Register )
7
6
5
4
3
2
1
0
-
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 time out.
EVENT
WDT wake up from sleep mode
WDT time out (not sleep mode)
/RESET wake up from sleep
power up
T
P
REMARK
0
0
0
1
1
0
1
1
• Bit 5 : unused
• Bit 6 PAGE : change IOCB~IOCE to another page, 0/1→page0/page1
• Bit 7 : unused
R4 ( RAM Select Register )
• Bit 0 ~ 5 are used to select up to 64 register in the indirect addressing mode.
• Bit 6 ~ 7 determine which bank is actived among the 4 banks.
• See the configuration of the data memory in Fig.5.
* This specification are subject to be changed without notice.
10.12.1998 6
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