SH7144 Datasheet, PDF (593/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

Section 18 I/O Ports
The SH7144 has six ports: A to F. Ports A, C, D, and E are 16-bit ports, and port B is a 10-bit port.
Port F is an 8-bit input-only port.
The SH7145 has six ports: A to F. Port A is a 24-bit port, port B is a 10-bit port, port C is a 16-bit
port, port D is a 32-bit port, and port E is a 16-bit port. Port F is an 8-bit input-only port.
All the port pins are multiplexed as general input/output pins and special function pins. The
functions of the multiplex pins are selected by means of the pin function controller (PFC). Each
port is provided with a data register for storing the pin data.
18.1 Port A
Port A in the SH7144 is an input/output port with the 16 pins shown in figure 18.1.
Port A
PA15 (I/O) / CK (output)
PA14 (I/O) / (output)
PA13 (I/O) /
(output)
PA12 (I/O) /
(output)
PA11 (I/O) / (output)
PA10 (I/O) / (output)
PA9 (I/O) / TCLKD (input) /
PA8 (I/O) / TCLKC (input) /
PA7 (I/O) / TCLKB (input) /
PA6 (I/O) / TCLKA (input) /
PA5 (I/O) / SCK1 (I/O) /
PA4 (I/O) / TXD1 (output)
PA3 (I/O) / RXD1 (input)
PA2 (I/O) / SCK0 (I/O) /
PA1 (I/O) / TXD0 (output)
PA0 (I/O) / RXD0 (input)
(input)
(input)
(output)
(output)
(input) /
(input) /
(input)
(input)
Figure 18.1 Port A (SH7144)
Rev. 2.0, 09/02, page 553 of 732