PG-FP4-E Renesas Electronics America, PG-FP4-E Datasheet - Page 97

• Manufacturer Part Number: PG-FP4-E
• Description: PROGRAMMER FLASH MEMORY UNIV
• Manufacturer: Renesas Electronics America

Specifications of PG-FP4-E

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Serial
interface pin
CPU Pin
RESET
• Connection to a point where the target CPU RESET pin cannot be driven to low level by the PG-FP4 RESET
When the CPU port used by the PG-FP4 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:
While the CPU port used by the PG-FP4 is also connected to the output of an external device, and if a signal
collision occurs, disconnect the external device.
Example:
signal.
Incorrect connection:
When the PG-FP4 RESET is driven low, the level of the voltage at point A does not fall.
CHAPTER 8 NOTES ON TARGET SYSTEMS
User’s Manual U15260EJ4V0UM
PG-FP4 RESET
CPU
CPU
SO/TxD
SI/RxD
External device
Adverse effect
Design Proposal
Output
Collision
A
External device
Input
PG-FP4
connector
PG-FP4
connector
CPU
RESET
95