HD6433308 Datasheet, PDF (106/349 Pages) Hitachi Semiconductor – Hitachi Single-Chip MicroComputer

Reset
R
Q
D
P4n DDR
C
WP4D
Reset
R
P4 n
Q
D
P4n DR
C
8-Bit timer module,
PWM timer module
WP4
Output enable
8-Bit timer output
or PWM timer output
RP4
WP4D: Write Port 4 DDR
WP4: Write Port 4
RP4: Read Port 4
n = 1, 4, 6, 7
Figure 5-5. Port 4 Schematic Diagram (Pins P41, P44, P46, and P47)
5.6 Port 5
Port 5 is a 3-bit input/output port that also provides the input and output pins for asynchronous
serial communication. The pin functions depend on control bits in the serial control register (SCR).
Pins not used for serial communication are available for general-purpose input/output. Table 5-10
lists the pin functions, which are the same in both the expanded and single-chip modes.
Table 5-10. Port 5 Pin Functions (Modes 1 to 3)
Usage
I/O port
Timer
Pin functions
P50
P51
ATxD ARxD
P52
ASCK
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