h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 300

• 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
9.10.3
Port C can function as LCD segment output pins (H8S/2646, H8S/2646R, H8S/2645: SEG8 to
SEG1, H8S/2648, H8S/2648R, H8S/2647: SEG24 to SEG17) and as address bus outputs. The pin
functions differ in modes 4 and 5, mode 6, and mode 7. The port C pin functions are listed in table
9.20.
Table 9.20 Port C Pin Functions
Note: Modes 4 and 5 are extended modes in which the internal ROM is disabled. Address output
Rev. 5.00 Sep 22, 2005 page 274 of 1136
REJ09B0257-0500
Setting of
SGS3 to
SGS0
Operating
mode
PCnDDR
Pin function
is disabled when port C is set to segment output, so it is not possible to interface with
external ROM. Therefore port C must not be set to segment output in mode 4 or mode 5.
Pin Functions
Modes
4 and 5
A7 to A0
output
—
PC0 input
PC7 to
0
Mode 6
A7 to A0
output
Port
1
PC0 input
PC7 to
0
Mode 7
PC0 output
PC7 to
1
H8S/2646R,
H8S/2646,
H8S/2645
SEG8 to
output
SEG1
—
—
SEG output
H8S/2648R,
H8S/2648,
H8S/2647
SEG24 to
SEG17
output
—
—