HD6473258CP10 Datasheet, PDF (24/301 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

Table 1-3. Pin Functions (3)
Type
Symbol
Serial com- TxD0
munication TxD1
interface RxD0
RxD1
SCK0
SCK1
General- P17 to P10
purpose
I/O
P27 to P20
P37 to P30
P47 to P40
P55 to P50
P66 to P60
P77 to P70
Parallel
hand-
shaking
interface
P37 to P30
IS
OS
BUSY
I/O Name and function
O Serial Transmit Data (channels 0 and 1): Data output
pins for the serial communication interface.
I Serial Receive Data (channels 0 and 1): Data input pins
for the serial communication interface.
I/O Serial ClocK (channels 0 and 1): Input/output pins for the
serial clock signals.
I/O Port 1: An 8-bit input/output port with programmable MOS
input pull-ups and LED driving capability. The direction of each
bit can be selected in the port 1 data direction register (P1DDR).
I/O Port 2: An 8-bit input/output port with programmable MOS input
pull-ups and LED driving capability. The direction of each bit can
be selected in the port 2 data direction register (P2DDR).
I/O Port 3: An 8-bit input/output port with programmable MOS input
pull-ups. The direction of each bit can be selected in the port 3 data
direction register (P3DDR).
I/O Port 4: An 8-bit input/output port with programmable MOS input
pull-ups. The direction of each bit (except P46) can be selected in
the port 4 data direction register (P4DDR).
I/O Port 5: A 6-bit input/output port with programmable MOS input
pull-ups. The direction of each bit can be selected in the port 5 data
direction register (P5DDR).
I/O Port 6: A 7-bit input/output port with programmable MOS input
pull-ups. The direction of each bit can be selected in the port 6 data
direction register (P6DDR).
I/O Port 7: An 8-bit input/output port with programmable MOS input
pull-ups. The direction of each bit can be selected in the port 7 data
direction register (P7DDR).
I/O Data Input/Output: Data input/output pins for the parallel
handshaking interface.
I Input Strobe: Strobe input signal from an external device.
O Output Strobe: Strobe output signal to an external device.
O Busy: Notifies an external device that the H8/325 Series chip is not
ready to receive data.
14