參數(shù)資料
型號: MC68HC05C9AMB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP42
封裝: SHRINK, PLASTIC, DIP-42
文件頁數(shù): 23/124頁
文件大?。?/td> 774K
代理商: MC68HC05C9AMB
Self-Check Mode
MC68HC05C9A Advance Information Data Sheet, Rev. 5.1
Freescale Semiconductor
119
C.2.2 Self-Check Results
Table C-1 shows the 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.
Table C-1. LED Codes
PC3
PC2
PC1
PC0
Remarks
Off
On
Off
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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