Renesas H8S/2111B Manuel D’Utilisation
Rev. 1.00, 05/04, page 112 of 544
• 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.
SCR of SCI_1, the SPS1 bit* in SPSR, and the P50DDR bit.
SPS1* 0
1
TE — 0
1
P50DDR 0 1
0
1
—
Pin Function
P50 input pin
P50 output pin
P50 input
pin
P50 output
pin
ExTxD1
output pin*
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.
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)
• 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
Initial
Value R/W Description
Value R/W Description
7 P67DDR
0 W
6 P66DDR
0 W
5 P65DDR
0 W
4 P64DDR
0 W
3 P63DDR
0 W
2 P62DDR
0 W
1 P61DDR
0 W
0 P60DDR
0 W
The corresponding port 6 pins are output ports when
P6DDR bits are set to 1, and input ports when cleared
to 0.
P6DDR bits are set to 1, and input ports when cleared
to 0.