參數(shù)資料
型號: PGFPL2
廠商: NEC Corp.
英文描述: Flash Memory Programmer
中文描述: 閃存編程
文件頁數(shù): 61/73頁
文件大小: 1375K
代理商: PGFPL2
CHAPTER 7 NOTES ON TARGET SYSTEMS
User’s Manual U17307EJ2V0UM
61
CPU Pin
Design Proposal
RESET
Connection to a point where the target CPU RESET pin cannot be driven to low level by the FPL2 RESET
signal.
Incorrect connection:
A
CPU
FPL2 RESET
RESET
When the FPL2 RESET is driven low, the level of the voltage at point A does not fall.
Serial
interface pin
When the CPU port used by the FPL2 is also connected to the input of an external device, and if that device
malfunctions, disconnect the external device or make it output high impedance.
Example:
Adverse effect
FP4
connector
Input
External device
CPU
RESET
X1
X2
While the CPU port used by the FPL2 is also connected to the output of an external device, and if a signal
collision occurs, disconnect the external device.
Example:
FP4
connector
Collision
Output
External device
CPU
RESET
X1
X2
Other
For the unused pins, refer to the user’s manual of the device.
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