h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 316

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 9 I/O Ports
Rev. 5.00 Sep 22, 2005 page 290 of 1136
REJ09B0257-0500
Pin
PF5/RD/SEG19
(H8S/2646,
H8S/2646R,
H8S/2645)
PF5/RD/SEG35
(H8S/2648,
H8S/2648R,
H8S/2647)
PF4/HWR/SEG18
(H8S/2646,
H8S/2646R,
H8S/2645)
PF4/HWR/SEG34
(H8S/2648,
H8S/2648R,
H8S/2647)
Selection Method and Pin Functions
Switches as follows according to the operating mode and the setting of SGS3
to SGS0 and bit PF5DDR.
Switches as follows according to the operating mode and the setting of SGS3
to SGS0 and bit PF4DDR.
Operating Mode
Operating Mode
Setting of SGS3 to
SGS0
PF5DDR
Pin
function
Setting of SGS3 to
SGS0
PF4DDR
Pin
function
H8S/2646,
H8S/2646R,
H8S/2645
H8S/2648,
H8S/2648R,
H8S/2647
H8S/2646,
H8S/2646R,
H8S/2645
H8S/2648,
H8S/2648R,
H8S/2647
SEG19
SEG35
output
output
output
SEG18
SEG34
SEG
output
output
output
SEG
—
Modes 4 to 6
Modes 4 to 6
—
RD output
output
Port
HWR
Port
—
—
SEG19
SEG35
output
output
output
SEG18
SEG34
output
output
output
SEG
SEG
—
—
PF5 input PF5 output
Mode 7
Mode 7
input
PF4
0
0
Port
Port
output
PF4
1
1