參數(shù)資料
型號： MC68HSC05C8CFN
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁數(shù)： 85/116頁
文件大?。?/td> 781K
代理商： MC68HSC05C8CFN
Operating Modes
MC68HC05C8A MC68HCL05C8A MC68HSC05C8A Data Sheet, Rev. 5.1
70
Freescale Semiconductor
11.3.2 Self-Check Results
Table 11-2 shows the light-emitting diode (LED) codes that indicate self-check test results.
Perform these steps to activate the self-check tests:
1.
Apply 10 V (2 x VDD) to the IRQ pin.
2.
Apply a logic 1 to the TCAP pin.
3.
Apply a logic 0 to the RESET pin.
The self-check tests begin on the rising edge of the RESET pin.
RESET must be held low for 4064 cycles after power-on reset (POR) or for a time, tRL, for any other reset.
For the tRL value, see 13.8 5.0-V Control Timing.
Table 11-2. Self-Check Circuit LED Codes
PC3
PC2
PC1
PC0
Remarks
OffOnOnOff
I/O failure
Off
On
Off
On
RAM failure
Off
On
Off
Timer failure
Off
On
SCI failure
Off
On
Off
ROM failure
Off
On
SPI failure
Flashing
No failure
All others
Device failure
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