h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 317

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

Pin
PF3/LWR/
ADTRG/IRQ3
PF2/WAIT/SEG17
(H8S/2646,
H8S/2646R,
H8S/2645)
PF2/WAIT/SEG33
(H8S/2648,
H8S/2648R,
H8S/2647)
PF0/IRQ2
Selection Method and Pin Functions
Switches as follows according to the operating mode and the setting of bits
TRGS1, TRGS0, and PF3DDR.
Notes: 1. ADTRG input when TRGS0 = TRGS1 = 1.
Switches as follows according to the operating mode, and the setting of bits
SGS3 to SGS0, the WAITE bit, and bit PF2DDR.
Switches as follows according to the PF0DDR bit.
Operating
Mode
Bus mode
PF3DDR
Pin function
Operating Mode
Setting of SGS3 to
SGS0
WAITE
PF2DDR
Pin
function
PF0DDR
Pin function
2. When used as an external interrupt input pin, do not use it as an
H8S/2646,
H8S/2646R,
H8S/2645
H8S/2648,
H8S/2648R,
H8S/2647
I/O pin for other functions.
LWR output PF3 input PF3 output PF3 input PF3 output
16-bit bus
mode
—
SEG17
SEG33
output
output
output
SEG
—
—
PF0 input
Modes 4 to 6
Modes 4 to 6
input
0
PF2
0
8-bit bus mode
0
Rev. 5.00 Sep 22, 2005 page 291 of 1136
0
output
Port
PF2
1
IRQ2 input
ADTRG input *
1
IRQ3 input *
WAIT
input
—
1
SEG17
SEG33
output
output
output
SEG
—
1
PF0 output
Section 9 I/O Ports
0
2
REJ09B0257-0500
1
Mode 7
1
Mode 7
input
PF2
—
0
Port
—
output
1
PF2
1