參數(shù)資料
型號: MC68HSC05C9A
廠商: Motorola, Inc.
元件分類: 8位微控制器
英文描述: 8-Bit Microcontroller(8位微控制器)
中文描述: 8位微控制器(8位微控制器)
文件頁數(shù): 156/160頁
文件大小: 783K
代理商: MC68HSC05C9A
L
G
R
Self-Check Mode
General Release Specification
MC68HC05C9A
Rev. 4.0
156
Self-Check Mode
MOTOROLA
C.3.2 Self-Check Results
Table C-1
shows the LED codes that indicate self-check test results.
Perform the following steps to activate the self-check tests:
1.
2.
3.
Apply 10 V (2 x V
DD
)
to the IRQ pin.
Apply a logic one to the TCAP pin.
Apply a logic zero 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, t
RL
, for any other reset. (For the t
RL
value, see
Table 12-3
.)
Table C-1. Self-Check Circuit LED Codes
PC3
PC2
PC1
PC0
Remarks
Off
On
On
Off
I/O Failure
Off
On
Off
On
RAM Failure
Off
On
Off
Off
Timer Failure
Off
Off
On
On
SCI Failure
Off
Off
On
Off
ROM Failure
Off
Off
Off
On
SPI Failure
Flashing
No Failure
All Others
Device Failure
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