HD6473258CP10 Datasheet, PDF (103/301 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

Hardware standby
Mode 3
P47
Mode 1 or 2
Mode Mode 3
1 or 2
Reset
SR
Q
D
P47DDR
C
WP4D
Reset
R
Q
D
P47DR
C
WP4
E
RP4
WP4D: Write Port 4 DDR
WP4: Write Port 4
RP4: Read Port 4
Figure 5-7. Port 4 Schematic Diagram (Pin P47)
5.6 Port 5
Port 5 is a 6-bit input/output port that also provides the input and output pins for the serial
communication interface. The pin functions depend on control bits in the serial control registers.
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.
Figure 5-7
Table 5-10. Port 5 Pin Functions (Modes 1 to 3)
Usage
I/O port
Serial communication
Pin functions
P50 P51
TxD0 RxD0
P52
SCK0
P53
TxD1
P54
RxD1
P55
SCK1
94