DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 243

• 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: -

7.11
Port A is an 8-bit I/O port. Port A pins also function as bus control output pins, SCI_3 and SCI_4
I/O pins, TMX_0, TMY_0, TM0_0, and PWM output pins, and FRT_0 and timer connection I/O
pins.
Port A has the following registers. For details on the port function control register, refer to section
7.10.4, Port Function Control Register (PFCR).
• Port A data direction register (PADDR)
• Port A data register (PADR)
• Port A register (PORTA)
• Port function control register (PFCR)
7.11.1
The individual bits in PADDR specify input or output for the pins of port A. The read value is
undefined.
Bit
7
6
5
4
3
2
1
0
Bit Name
PA7DDR
PA6DDR
PA5DDR
PA4DDR
PA3DDR
PA2DDR
PA1DDR
PA0DDR
Port A
Port A Data Direction Register (PADDR)
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 A pin is an output port when a
PADDR bit is set to 1, and an input port when
cleared to 0.
Rev.2.00 May. 28, 2009 Page 203 of 732
REJ09B0059-0200