Port 6; Port 6 Data Direction Register (P6Ddr) - Renesas H8S/2111B Hardware Manual

• P50/ExTxD1
The pin function is switched as shown below according to the combination of the TE bit in
SCR of SCI_1, the SPS1 bit* in SPSR, and the P50DDR bit.
SPS1*
TE
P50DDR
Pin Function
Note: * The program development tool (emulator) does not support this function.
7.6

Port 6

Port 6 is an 8-bit I/O port. Port 6 pins also function as the FRT I/O pins, TMR_X I/O pins,
TMR_Y input pin, key-sense interrupt input pins, and interrupt input pins. Port 6 has the following
registers.

• Port 6 data direction register (P6DDR)

• Port 6 data register (P6DR)
• Port 6 pull-up MOS control register (KMPCR)
• System control register 2 (SYSCR2)
7.6.1 Port 6 Data Direction Register (P6DDR)
P6DDR specifies input or output for the pins of port 6 on a bit-by-bit basis.
Bit Bit Name
7 P67DDR
6 P66DDR
5 P65DDR
4 P64DDR
3 P63DDR
2 P62DDR
1 P61DDR
0 P60DDR
Rev. 1.00, 05/04, page 112 of 544
0
—
0
P50 input pin P50 output pin
Initial
Value R/W
0 W
0 W
0 W
0 W
0 W
0 W
0 W
0 W
1 0
P50 input
pin
Description
The corresponding port 6 pins are output ports when
P6DDR bits are set to 1, and input ports when cleared
to 0.
1
0 1
1 —
P50 output ExTxD1
pin output pin*