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Target system interface for Flasher 5

The clocked synchronous interface from FLASHER to target system has to be connected to the 10 pin dual in line pin connector, (pin 1 is on the top left, marked at the connector) as shown in the diagram.

Target interface to M16C62/M16C80/M32C (M30624/M30625/M30800)
Pin nr. Signal Function Specification/remarks.
1 VCCS Positive supply voltage of target Input 3.0 .. 5.5V to supply the interface
2 BUSY Target CPU Busy signal output. FLASHER Input with Pull-Up to internal 3.3V
3 SCLK Target CPU Serial clock (input) FLASHER Output, CMOS driver via 220 Ohms
4 RxD Target CPU Serial data input FLASHER Output, CMOS driver via 220 Ohms
5 CE Chip enable signal of target CPU FLASHER Input/Output
6 EPM EPM signal of target CPU FLASHER Input/Output
7 GND Common signal ground ---
8 RESET RESET signal of target system FLASHER Output, CMOS driver via 220 Ohms
9 CNVss Target CPU CNVss signal FLASHER analog Output
10 TxD Target CPU Serial data output FLASHER Input/Output

The pull-up resistors of outputs are connected to VCCS.
If RESET of the target system is driven by a reset circuitry with active high driver, RESET output of FLASHER must not be connected directly to CPU reset of target. For M16C/62 or M16C/80 targets you do not have to connect RESET to FLASHER; you can always manually reset your target system after connecting FLASHER.

 

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