TC7109/A
Address Bus
Control Bus
Data Bus
GND
MODE
RD WR D7 - D0
CE/LOAD
- B
POL, OR
A0 - A1
CS
B
9
12
6
PA5 - PA0
PC6
Analog In
RUN/HOLD
μPD8748H/49H
μPD8255A
TC7109A
B
1
- B
8
PB7 - PB0
8
STB
INTR
A
A
STATUS
LBEN
PC4
PC6
INTR
1mF
HBEN
10kW
GND
+5V
(See Text)
FIGURE 4-4:
Full Time Parallel Interface to μPD8748H/494 Microcontrollers
Address Bus
Control Bus
Data Bus
RD WR D7 - D0 A0 - A1
CS
B - B
12
9
POL, OR
6
8
Analog In
B - B
1
PA7 - PA0
μPD8255A
(Mode 1)
8
TC7109A
μPD8748H/49H
STB
A
CE/LOAD
PC4
PC5
PC6
PC7
IBF
A
SEND
RUN/HOLD
MODE
INTR
PC3
FIGURE 4-5:
TC7109A Handshake Interface to μPD8748H/494 Microcontrollers
© 2006 Microchip Technology Inc.
DS21456C-page 19
MICROCHIP [ MICROCHIP ]
