HD6433308 HITACHI [Hitachi Semiconductor], HD6433308 Datasheet - Page 111

• Manufacturer Part Number: HD6433308
• Description: Hitachi Single-Chip MicroComputer
• Manufacturer: HITACHI [Hitachi Semiconductor]

5.7 Port 6
Port 6 is an 8-bit input/output port that also provides the input and output pins for the free-running
timer and the IRQ
free-running timer control registers, and on bit 6 or 7 of the interrupt enable register. Pins not used
for timer or interrupt functions are available for general-purpose input/output. Table 5-12 lists the
pin functions, which are the same in both the expanded and single-chip modes.
Table 5-12. Port 6 Pin Functions
Usage Pin functions (Modes 1 to 3)
I/O port
Timer/interrupt FTCI
P5
2
WP5D: Write Port 5 DDR
WP5
RP5:
P6
Write Port 5
Read Port 5
6
0
and IRQ
Figure 5-8. Port 5 Schematic Diagram (Pin P5
P6
FTOA
7
1
input/output pins. The pin functions depend on control bits in the
P6
FTIA
2
P6
FTIB
3
96
P6
FTIC
4
RP5
P6
FTID
Q
P5
Q
P5
5
WP5D
WP5
Reset
2
2
Reset
C
DDR
DR
R
R
D
P6
FTOB/IRQ
D
2
)
6
6
Asynchronous
serial clock
input enable
Asynchronous
serial clock
output enable
Asynchronous
serial clock
output
Asynchronous
serial clock
input
SCI module
P6
IRQ
7
7