DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 227

• 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: -

• P70/AN0
7.9
Port 8 is an 8-bit I/O port. Port 8 pins also function as external trigger input pins for the A/D
converter, PWMX output pins, SCI_3, SCI_4, IIC3_0, and IIC3_1 I/O pins, and TPU I/O pins.
The output format for P80 to P83 which are general I/O ports is NMOS push-pull output.
Port 8 has the following registers.
• Port 8 data direction register (P8DDR)
• Port 8 data register (P8DR)
• Port 8 register (PORT8)
7.9.1
The individual bits in P8DDR specify input or output for the pins of port 8. The read value is
undefined.
Pin
function
Bit
7
6
5
4
3
2
1
0
Bit Name
P87DDR
P86DDR
P85DDR
P84DDR
P83DDR
P82DDR
P81DDR
P80DDR
P70 input pin
AN0 input pin
Port 8
Port 8 Data Direction Register (P8DDR)
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 8 pin is an output port when a
P8DDR bit is set to 1, and an input port when
cleared to 0.
Rev.2.00 May. 28, 2009 Page 187 of 732
REJ09B0059-0200