h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 176

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

7.14
Port G is an 8-bit I/O port. Port G pins also function as IIC_0 and IIC_1 I/O pins. The output type
of port G is NMOS push-pull output. The output type of ExSCLB*, ExSDAB*, ExSCLA*, and
ExSDAA* is NMOS open-drain output and the pins can directly drive the bus. Port G has the
following registers. For details of PGCTL, see section 13.3.9, Port G Control Register (PGCTL).
• Port G data direction register (PGDDR)
• Port G output data register (PGODR)
• Port G input data register (PGPIN)
• Port G Nch-OD control register (PGNOCR)
• Port G control register (PGCTL)*
Note: *
7.14.1
PGDDR selects input or output for the pins of port G on a bit-by-bit basis.
Rev. 1.00, 05/04, page 142 of 544
Bit
7
6
5
4
3
2
1
0
Bit Name
PG7DDR
PG6DDR
PG5DDR
PG4DDR
PG3DDR
PG2DDR
PG1DDR
PG0DDR
Port G
Port G Data Direction Register (PGDDR)
The program development tool (emulator) does not support this function.
Initial
Value
0
0
0
0
0
0
0
0
R/W
W
W
W
W
W
W
W
W
Description
0: Port G pin is an input pin
1: Port G pin is an output pin
PGDDR has the same address as PGPIN, and if read,
the port G pin states will be returned.