Buzzer control, Keypad control, Led control – Zilog Z8F0411 User Manual
Page 46: Buzzer control keypad control led control
MDS General-Purpose Board Development Kit
User Manual
UM016905-1207
Appendix—MDS-PM Board Pin Maps
35
•
LCD_D5—I
2
C bus expander address 1—D5
•
LCD_D6—I
2
C bus expander address 1—D6
•
LCD_D7—I
2
C bus expander address 1—D7
•
LCD BackLight—PD5
Buzzer Control
BUZZER—PC7 (eZ80F91 MCU alternate function: RI input)
KeyPad Control
•
COL0—PB1
•
COL1—PB2
•
COL2—PB3
•
ROW0—PB4
•
ROW1—PB5
•
ROW2—PB6
•
ROW3—PB7
•
IRQ_KEYPAD_TEMP—PD4 (eZ80F91 MCU alternate function:
DTR output)
LED Control
U13 I
2
C bus address: 0100001 R/W.
•
RED_LED—I
2
C bus expander address 1—D0
•
YELLOW_LED—I
2
C bus expander address 1—D1
•
GREEN_LED—I
2
C bus expander address 1—D2