Target system interface for Flasher ST7

The target system interface from FLASHER to target system has to be connected to the 10 pin connector, (pin 1 is marked at the connector) as shown in the diagram.

Pin nr.	Signal	Function	Specification/remarks.
1	GND	Common signal ground	---
2	ICCDATA	Data signal for ICC protocol communication	Open collector output with active pull up
3	GND	Common signal ground	---
4	ICCCLK	Clock signal for ICC protocol communication	Open collector output with active pull up
5	GND	Common signal ground	---
6	RESET	Target CPU reset	FLASHER output (Note 1)
7	VDD	Target supply voltage	Supplies FLASHERs target interface
8	ICCSEL/VPP	Programming voltage for target CPU	12V programming voltage, also used to enter ICC mode
9	OSC_CLK	Target CPU clock	Supplies system clock to target
10	--	--	Not used for ST7, leave open

Note 1:
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.