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參數(shù)資料
| 型號： | EM78810 |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | 8-Bit Micro-Controller for Telecom Product(工作電壓2.5V-6V的8位呼叫識別的RISC型微控制器) |
| 中文描述： | 8位微控制器的電信產(chǎn)品（工作電壓為2.5V到6V的8位呼叫識別的的RISC型微控制器） |
| 文件頁數(shù)： | 14/31頁 |
| 文件大小： | 191K |
| 代理商： | EM78810 |
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* This specification are subject to be changed without notice.
14
9.30.1997
EM78810
8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT
Fig. 12 Block diagram of Reset of controller
Once the RESET occurs, the following functions are performed.
The oscillator is running, or will be started.
The Program Counter (R2) is set to all “0”.
When power on, the upper 3 bits of R3 and the upper 2 bits of R4 are cleared.
The Watchdog timer and prescaler are cleared.
The Watchdog timer is disabled.
The CONT register is set to all “1”
The other register (bit7. . bit0)
R5 =
PORT
R6 =
PORT
R7 =
PORT
R8 =
PORT
R9 =
PORT
RA = "000X0XXX"
RB =
"11111111"
RC =
"00000000"
RD = "XXXXXXXX"
RE =
"00000000"
RF =
"00000000"
IOC5
IOC6
IOC7
IOC8
IOC9
IOCA
IOCB
IOCC
IOCD
IOCE
IOCF
=
=
=
=
=
=
=
=
=
=
=
"11111111"
"11111111"
"11111111"
"11111111"
"11111111"
"00000000"
"00000000"
"0XXXXXXX"
"00000000"
"00000000"
"00000000"
The controller can be awakened from sleep mode (execution of “SLEP” instruction, named as SLEEP MODE)
by (1) WDT time-out (if enabled) or, (2) external input. The two cases will cause the controller reset.
Before executing “SLEP” instruction , these two cases should enable RE register before into the sleep mode.
Interrupt
The CALLER ID IC has internal interrupts which are falling edge triggered, as followed : TCC timer overflow
interrupt (internal) , two 8-bit counters overflow interrupt .
If these interrupt sources change signal from high to low , then RF register will generate ‘1’ flag to corresponding
register if you enable IOCF register.
RF is the interrupt status register which records the interrupt request in flag bit. IOCF is the interrupt mask
V
DD
D
CLK
CLR
Q
CLK
RESET
18 ms
WDT
Oscillator
M
U
X
1
0
Power-on
Reset
Voltage
Detector
/Enable
Code
Option
WDTE
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| EM78811 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT |
| EM78815 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8 Bit Microcontroller |
| EM78815AQ | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8 Bit Microcontroller |
| EM78815BQ | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8 Bit Microcontroller |
| EM78815H | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8 Bit Microcontroller |
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