Fujitsu MB88121 SERIES manual USER-LEDs and optional LC-Display D1-D16, J6, LED/LCD Signals

SK-91F467-FLEXRAY V1.1

Connectors

4.6USER-LEDs and optional LC-Display (D1-D16, J6)

There are sixteen user LEDs on-board, D1-D8 connected to MCU port P25 and D9-D16 connected to MCU port P16. To disconnect the LEDs from the MCU, it is possible to remove RN3 (D1-D8 at port P25) and RN2 (D9-D16 at port P16).

It is also possible to connect a standard LCD module with backlight to connector J6. With the potentiometer RP1 the contrast of the LCD can be adjusted.

Pin	14	13	12	11	10	9	8	7	6	5	4	3	2	1	16	15
LCD	DB7	DB6	DB5	DB4	-	-	-	-	E	R/W	RS	VO	Vcc	GND	LED-	LED+
LED
	D8	D7	D6	D5				D4	D3	D2	D1
Port
	P25_7	P25_6	P25_5	P25_4				P25_3	P25_2	P25_1	P25_0
MCU
	187	186	185	184				181	180	179	178

Table 4-5: LED/LCD Signals

LCD contrast

D16	D9	D8	D1
(Port: P16_7)	(Port: P16_0)	(Port: P25_7)	(Port: P25_0)

Figure 4-6: User LEDs / LCD

© Fujitsu Microelectronics Europe GmbH - 41 - FMEMCU-UG-910017-11