r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 534

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 10 I/O Ports
10.1.4
P1ODR specifies the output type of each port 1 pin.
10.1.5
Port 1 pins also function as the pins for PPG outputs, TPU I/Os, EXDMAC I/Os (H8S/2456,
H8S/2456R), SSU I/Os, and DMAC I/Os (H8S/2454). The correspondence between the register
specification and the pin functions is shown below.
(1)
• P17/PO15/TIOCB2/TCLKD/EDRAK3/SCS0-A
Rev. 1.00 Sep. 19, 2008 Page 504 of 1342
REJ09B0467-0100
Bit
7
6
5
4
3
2
1
0
The pin function is switched as shown below according to the combination of the operating
mode, bit EXPE, TPU channel 2 settings (by bits MD3 to MD0 in TMDR_2, bits IOB3 to
IOB0 in TIOR_2, and bits CCLR1 and CCLR0 in TCR_2), bits TPSC2 to TPSC0 in TCR_0
and TCR_5, bit NDER15 in NDERH of PPG, bit EDRAKE in EDMDR_3 of EXDMAC, bits
MSS, CSS1, and CSS0 in SSCRH and bit SSUMS in SSCRL of SSU, bits SCS0S1 and
SCS0S0 in PFCR5, and bit P17DDR.
Pin Functions of H8S/2456 Group and H8S/2456R Group
Bit Name
P17ODR
P16ODR
P15ODR
P14ODR
P13ODR
P12ODR
P11ODR
P10ODR
Port 1 Open Drain Control Register (P1ODR)
Pin Functions
Initial Value
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Setting a P1ODR bit to 1 makes the corresponding
pin an NMOS open-drain output pin, while clearing
a P1ODR bit to 0 makes the corresponding pin a
CMOS output pin.