r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 566

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 10 I/O Ports
• P21/IRQ9-B/PO1-A/TIOCB3-A
TPU channel 3
settings
P21DDR
NDER1
Pin function
Notes: 1. TIOCB3-A input when MD3 to MD0 = B'0000 and IOB3 to IOB0 = B'10××.
TPU channel 3
settings
MD3 to MD0
IOB3 to IOB0
CCLR2 to
CCLR0
Output function
Legend:
×: Don’t care
Rev. 1.00 Sep. 19, 2008 Page 538 of 1270
REJ09B0466-0100
The pin function is switched as shown below according to the combination of the TPU channel
3 settings (by bits MD3 to MD0 in TMDR_3, bits IOB3 to IOB0 in TIORH_3, and bits
CCLR2 to CCLR0 in TCR_3), bit NDER1 in NDERL of the PPG, bits PPGS and TPUS in
PFCR3, bit P21DDR, and bit ITS9 in ITSR of the interrupt controller.
2. IRQ9-B input when the ITS9 bit in ITSR is 1.
3. PO1-A output when the PPGS bit in PFCR3 is 0.
4. TIOCB3-A input/output when the TPUS bit in PFCR3 is 0.
B'0000,
B'0100,
B'1×××
(1) in table
TIOCB3-A
output*
(2)


below


B'0000
4
B'0001 to
B'0101 to
compare
B'0011,
B'0111
Output
output
(1)

P21 input

0
IRQ9-B interrupt input*
B'0010
(2)



TIOCB3-A input*
(2) in table below
P21 output
B'××00
(2)


0
2
PWM mode
Other than
1
*
B'0011
2 output
4
Other than B'××00
B'010
1
(1)
PO1-A output*
1
B'010
(2)

3