DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 233

• 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: -

7.10
Port 9 is an 8-bit I/O port. Port 9 pins also function as bus control I/O pins, system clock output
pins, and TPU I/O pins. Port 9 functions change according to the operating mode.
Port 9 has the following registers.
• Port 9 data direction register (P9DDR)
• Port 9 data register (P9DR)
• Port 9 register (PORT9)
• Port function control register (PFCR)
7.10.1
The individual bits in P9DDR specify input or output for the pins of port 9. The read value is
undefined.
Bit
7
6
5
4
3
2
1
0
Bit Name
P97DDR
P96DDR
P95DDR
P94DDR
P93DDR
P92DDR
P91DDR
P90DDR
Port 9
Port 9 Data Direction Register (P9DDR)
Initial Value
0
0
0
0
0
0
0
0
R/W
W
W
W
W
W
W
W
W
Description
If port 9 pins are specified for use as the general
I/O port, the corresponding port 9 pins are output
ports when the P9DDR bits are set to 1, and input
ports when cleared to 0.
When this bit is set to 1, the corresponding port 9
pin is the system clock output pin (φ), and as a
general input port when cleared to 0.
If port 9 pins are specified for use as the general
I/O port, the corresponding port 9 pins are output
ports when the P9DDR bits are set to 1, and input
ports when cleared to 0.
Rev.2.00 May. 28, 2009 Page 193 of 732
REJ09B0059-0200