Renesas M16C/6V Manual de usuario descargar pdf (Pagina 7)

FLASHER 5 Manual 7

Target interface for M16C/62, M16C26P, M16C/80, M32C and R32C

The clocked synchronous interface from Flasher to target system is built with a 10 pin dual in line pin con-

nector,(pin1 is marked at the connector) at the front of FLASHER. Function depends on selected target.

Pin no. Signal Function for M16C/62, M16C/80 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

If RESET of 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.

Target system interface for M16C/62, M16C/80, M32C, R32C

Reset

(P55)

* R>= 1kOhm

M16C

Connection Diagram for serial programming:

FLASHER <===> target CPU M16C/62 or M16C/80 groups

Target System

FLASHER

Target interface

(front view)

EPM

(P50)

TxD1

RTS1

RxD1

CLK1

VCCS

BUSY

SCLK

RxD

EPM

GND

RESET

CNVss

TxD

CNVss

GND

VCC

NMI

Caution:

Before connecting the target with Flasher, ensure that there is NO difference in the ground potential

between Flasher and target.

When the Flasher is connected to a PC via RS232C cable, ensure that the PC and the target operate on

the same ground potential.

Connect the ground lines from PC and your target before connecting the Flasher to the target.

If a ground potential difference between Flasher and target exists, the Flasher may be damaged.

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Renesas M16C/6V Manual de usuario Pagina 7

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