参数资料
型号: MC68HC05C9EFB
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 47/144页
文件大小: 1628K
代理商: MC68HC05C9EFB
N
O
N-D
I
SC
L
O
SU
R
E
AG
R
EEMENT
R
E
Q
U
IR
ED
Self-Check Mode
Advance Information
MC68HC05C9E
140
Self-Check Mode
MOTOROLA
A.3.2 Self-Check Results
Table A-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 V
DD) 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 value of tRL, see 12.8 Serial
Peripheral Interface Timing and 12.7 Control Timing.
Table A-1. Self-Check Circuit LED Codes
PC3
PC2
PC1
PC0
Remarks
Off
OnOnOff
I/O failure
Off
On
Off
On
RAM failure
Off
On
Off
Timer failure
Off
On
SCI failure
Off
On
Off
ROM failure
OffOff
OffOn
SPI failure
Flashing
No failure
All others
Device failure
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