r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 664

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

Section 10 I/O Ports
10.14.4 Port F Open Drain Control Register (PFODR)
PFODR specifies the output type of each port F pin.
10.14.5 Pin Functions
Port F pins also function as the pins for SSU I/Os, A/D converter inputs, interrupt inputs, bus
control signal I/Os, and system clock outputs. The correspondence between the register
specification and the pin functions is shown below.
• PF7/φ
Rev. 1.00 Sep. 19, 2008 Page 636 of 1270
REJ09B0466-0100
Bit
7
6
5
4
3
2
1
0
Operating
mode
PF7DDR
Pin function
The pin function is switched as shown below according to bit PF7DDR.
Bit Name
PF7ODR
PF6ODR
PF5ODR
PF4ODR
PF3ODR
PF2ODR
PF1ODR
PF0ODR
Initial Value
0
0
0
0
0
0
0
0
PF7 input
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
When not specified for φ, AS, AH, RD, HWR, LWR,
LCAS, UCAS, DQML, DQMU, CS5, CS6, or OE-A
output, setting a PFODR bit to 1 makes the
corresponding pin an NMOS open-drain output pin,
while clearing a PFODR bit to 0 makes the
corresponding pin a CMOS output pin.
1, 2, 4, 7
φ output
1