DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 185

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

7.3
Port 2 is an 8-bit I/O port. Port 2 pins also function as address bus pins, address/data multiplex bus
pins, and TPU I/O pins. Pin functions change according to the operating mode.
Port 2 has the following registers.
• Port 2 data direction register (P2DDR)
• Port 2 data register (P2DR)
• Port 2 register (PORT2)
• Port 2 pull-up MOS control register (P2PCR)
7.3.1
The individual bits in P2DDR specify input or output for the pins of port 2. The read value is
undefined.
Bit
7
6
5
4
3
2
1
0
Bit Name
P27DDR
P26DDR
P25DDR
P24DDR
P23DDR
P22DDR
P21DDR
P20DDR
Port 2
Port 2 Data Direction Register (P2DDR)
Initial Value R/W
0
0
0
0
0
0
0
0
W
W
W
W
W
W
W
W
Description
•
•
•
In normal extended mode
The corresponding port 2 pin is an address output
when a P2DDR bit is set to 1, and an input port
when cleared to 0.
In multiplex extended mode
Operation is not affected.
In single-chip mode
While a general I/O port function is selected, the
corresponding port 2 pin is an output port when a
P2DDR bit is set to 1, and an input port when
cleared to 0.
Rev.2.00 May. 28, 2009 Page 145 of 732
REJ09B0059-0200