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PDF EM78910 Data sheet ( Hoja de datos )
| Número de pieza | EM78910 | |
| Descripción | 8-BIT MICRO-CONTROLLER | |
| Fabricantes | ELAN Microelectronics Corp | |
| Logotipo |  |
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EM78910/910A
8-BIT MICRO-CONTROLLER
Version 1.0
ELAN MICROELECTRONICS CORP.
No. 12, Innovation 1st RD., Science-Based Industrial Park
Hsin Chu City, Taiwan, R.O.C.
TEL: (03) 5639977
FAX: (03)5782037(SL) 5780617 (SA2)
1 page  
V. Functional Block Diagram
EM78910/910A
8-bit Micro-controller
CPCUPU
TITMIMININGGCOCONNTRTOROLL
TITMIMERER
ROROMM
RARAMM
IOIOPOPORTRT
FSFKSK
DTMF
SCDDACTTALMLLLWF WAAITIITNINGG
MEI&RTF
I/O
Fig.2 Block diagram1
Xin Xout
Oscillator
timing control
R1(TCC)
Control sleep
and wake-up
on I/O port
WDT timer
prescalar
GENERAL
RAM
R4
Interruption
control
ROM
Instruction
register
Instruction
decoder
R2 STACK
ALU
R3 ACC
R5
1.0k
CID RAM
FSK
DTMF
CALL WAITING
SDT
MEI&RTF
DATA & CONTROL BUS
PORT5
IOC5 R5
PORT6
IOC6 R6
PORT7
IOC7 R7
PORT9
IOC9 R9
P54~P57
P60~P67
P70~P77
Fig.3 Block diagram2
P90~P97
__________________________________________________________________________________________________________________________________________________________________
* This specification are subject to be changed without notice.
~ 3~
2001/01/12
5 Page 
EM78910/910A
8-bit Micro-controller
* Bit 7 (IDLE) : CPU power saving mode selection bit, 0/1 ! select sleep mode/select IDLE mode.
This bit will decide which CPU power saving mode is selected for SLEP instruction.
These two modes can be waken up by TCC clock or WatchDog or PORT9 and run from “SLEP” next
instruction.
Wakeup signal
SLEEP mode IDLE mode
GREEN mode NORMAL mode
RA(7,6)=(0,0) RA(7,6)=(1,0)
+ SLEP
+ SLEP
RA(7,6)=(x,0) RA(7,6)=(x,1)
no SLEP
no SLEP
TCC time out
X
Wakeup
Interrupt
+ Interrupt
+ Next instruction
Interrupt
WDT time out
RESET
Wakeup
RESET
RESET
+ Next instruction
PORT9
RESET
Wakeup
X
X
/RINGTIME pin
+ Next instruction
PORT70~73
X
Wakeup
Interrupt
Interrupt
+ Interrupt
+ Next instruction
P70 ~ P73 's wakeup functions are 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.
10. RB (DTMF row-freq. and column-freq tone selections)(write/write)
76543210
C3 C2 C1 C0 R3 R2 R1 R0
* Bit 3~0 (R3~R0) : DTMF row-frequency tone selection bits.
* Bit 7~4 (C3~C0) : DTMF column-frequency tone selection bits.
When bit 7~0 of RB are all "1”, DTMF generator is power off.
Bit 7~4 (column freq.)
Bit 3~0 (row freq.) 1110 (1203.0Hz) 1101 (1331.8Hz) 1011 (1472Hz)
1110 (699.2Hz)
1
2
3
1101 (771.6Hz)
4
5
6
1011 (854.0Hz)
7
8
9
0111 (940.1Hz)
*
0
#
0111 (1645.2Hz)
A
B
C
D
11. RC (Caller ID RAM address selection)(read/write)
7654321
CIDA7 CIDA6 CIDA5 CIDA4 CIDA3 CIDA2 CIDA1
* Bit 7~0 (CIDA7~CIDA0) : Caller ID RAM address selection bits
User can select Caller ID RAM address up to 256.
0
CIDA0
12. RD (Caller ID RAM data)(read/write)
* Bit 8 ~ Bit 0 are Caller ID RAM data transfer register.
User can see IOCA register how to select CID RAM banks.
13. RE (CW power control, WDT control, Wakeup control)(read/write)
7654
3 210
CWPWR /WDTE /WUP9H /WUP9L /WURING 0 0 0
* Bit 0~2 = 0 : unused
* Bit 3 (/WURING) : Ring wakeup control, 1/0 ! enable/disable
It is used to enable the wakeup function of /RINGTIME input pin.
* Bit 4 (/WUP9L) : PORT9’s low nibble wakeup control, 1/0 ! enable/disable
It is used to enable the wakeup function of low nibble for PORT9.
__________________________________________________________________________________________________________________________________________________________________
* This specification are subject to be changed without notice.
~ 9~
2001/01/12
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet EM78910.PDF ] | |
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