DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 250

• 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: -

7.12
Port B is an 8-bit I/O port. Port B pins also function as TMR1_1 input pins, TMR1_0 output pins,
FRT_1 and timer connection_0 I/O pins, and timer connection_1 input pins.
Port B has the following registers.
• Port B data direction register (PBDDR)
• Port B data register (PBDR)
• Port B register (PORTB)
7.12.1
The individual bits in PBDDR specify input or output for the pins of port B. The read value is
undefined.
Rev.2.00 May. 28, 2009 Page 210 of 732
REJ09B0059-0200
Bit
7
6
5
4
3
2
1
0
Bit Name
PB7DDR
PB6DDR
PB5DDR
PB4DDR
PB3DDR
PB2DDR
PB1DDR
PB0DDR
Port B
Port B Data Direction Register (PBDDR)
Initial Value
0
0
0
0
0
0
0
0
R/W
W
W
W
W
W
W
W
W
Description
While a general I/O port function is selected, the
corresponding port B pin is an output port when a
PBDDR bit is set to 1, and an input port when
cleared to 0.