HD6433308 Datasheet, PDF (111/349 Pages) Hitachi Semiconductor – Hitachi Single-Chip MicroComputer

Reset
R
Q
D
P52 DDR
SCI module
WP5D
Reset
Asynchronous
serial clock
input enable
R
P5 2
Q
D
P52 DR
C
WP5
Asynchronous
serial clock
output enable
Asynchronous
serial clock
output
RP5
WP5D: Write Port 5 DDR
WP5 Write Port 5
RP5: Read Port 5
Figure 5-8. Port 5 Schematic Diagram (Pin P52)
Asynchronous
serial clock
input
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 IRQ6 and IRQ7 input/output pins. The pin functions depend on control bits in the
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
P60 P61
P62
Timer/interrupt FTCI FTOA FTIA
P63 P64 P65 P66
FTIB FTIC FTID FTOB/IRQ6
P67
IRQ7
96