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參數(shù)資料
| 型號(hào)： | 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(shí)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(shí)別的的RISC型微控制器） |
| 文件頁數(shù)： | 13/31頁 |
| 文件大?。?/td> | 191K |
| 代理商： | EM78810 |
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* This specification are subject to be changed without notice.
9.30.1997
EM78810
8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT
Fig. 10 depicts the circuit diagram of TCC/WDT.
Both TCC and prescaler will be cleared by instructions which write to TCC each time.
The prescaler will be cleared by the WDTC and SLEP instructions, when assigned to WDT mode.
Fig. 10 Block diagram of TCC WDT
I/O Ports
The I/O registers, Port 5 ~ Port 9, are bi-directional tri-state I/O ports. Port 5 can be pulled-high internally by
software control. The I/O ports can be defined as “input” or “output” pins by the I/O control registers (IOC5 ~
IOC9 ) under program control. The I/O registers and I/O control registers are both readable and writable. The
I/O interface circuit is shown in Fig.11.
Fig. 11 The circuit of I/O port and I/O control register
RESET and Wake-up
The RESET can be caused by
(1) Power on reset, or Voltage detector
(2) WDT timeout. (if enabled)
Note that only Power on reset, or only Voltage detector in Case(1) is enabled in the system by CODE Option bit.
If Voltage detector is disabled, Power on reset is selected in Case (1). Refer to Fig. 12.
WDTE
WDT timeout
PAB
PAB
MUX
8-to-1 MUX
PSR0~PSR2
8-bit Counter
M
U
X
0
1
WDT
PAB
TCC overflow interrupt
Data Bus
TCC(R1)
SYNC
2 cycle
M
U
X
M
U
X
1
0
0
1
TE
TS
TCC
(32K CLK)
CLK(=Fosc/2)
PCRD
D
Q
Q
CLK
CL
PR
D
Q
Q
CLK
CL
PR
PDWR
PDRD
PCWR
M
U
X
0
1
PORT
IOD
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EM78811 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:8-BIT MICRO-CONTROLLER FOR TELECOM PRODUCT |
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| 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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