h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 315
h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
- Current page: 315 of 1165
- Download datasheet (6Mb)
9.13.3
Port F pins also function as LCD driver output pins (SEG20 to SEG17), external interrupt input
pins (IRQ2, IRQ3), the A/D trigger input pin (ADTRG), bus control signal I/O pins (AS, RD,
HWR, LWR, WAIT), and the system clock output pin (φ). Their functions differ in modes 4 to 6
and in mode 7. Table 9.29 lists the pin functions for port F.
Table 9.29 Port F Pin Functions
Pin
PF7/φ
PF6/AS/SEG20
(H8S/2646,
H8S/2646R,
H8S/2645)
PF6/AS/SEG36
(H8S/2648,
H8S/2648R,
H8S/2647)
Pin Functions
Selection Method and Pin Functions
Switches as follows according to bit PF7DDR.
Switches as follows according to the operating mode and the setting of SGS3
to SGS0 and bit PF6DDR.
PF7DDR
Pin function
Operating Mode
Setting of SGS3 to
SGS0
PF6DDR
Pin
function
H8S/2646,
H8S/2646R,
H8S/2645
H8S/2648,
H8S/2648R,
H8S/2647
SEG20
SEG36
output
output
output
SEG
—
Modes 4 to 6
PF7 input
AS output
0
Rev. 5.00 Sep 22, 2005 page 289 of 1136
Port
—
SEG20
SEG36
output
output
output
SEG
—
PF6 input PF6 output
Mode 7
Section 9 I/O Ports
φ output
REJ09B0257-0500
0
1
Port
1
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