DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 200

• 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: -

7.4.4
P3PCR controls the on or off state of input pull-up MOSs for port 3.
7.4.5
When the corresponding bit in PTCNT1 is set to 1, port 3 pins can be used as interrupt input pins
(ExIRQ3 to ExIRQ0). In normal extended mode, port 3 pins function as data I/O pins. In
multiplex extended mode, operation of port 3 pins is the same as that in single-chip mode. The
relationship between register setting values and pin functions is as follows.
• P37/D15
Rev.2.00 May. 28, 2009 Page 160 of 732
REJ09B0059-0200
Bit
7
6
5
4
3
2
1
0
P37DDR
Pin function
The pin function is switched as shown below according to the operating mode and the
P37DDR bit.
Bit Name
P37PCR
P36PCR
P35PCR
P34PCR
P33PCR
P32PCR
P31PCR
P30PCR
Port 3 Pull-Up MOS Control Register (P3PCR)
Pin Functions
Extended Mode
(ADMXE = 0)
D15 I/O pin
Normal
Initial Value
0
0
0
0
0
0
0
0
⎯
Extended Mode (EXPE = 1)
P37 input pin
Multiplex Extended Mode
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
(ADMXE = 1)
Description
•
•
•
P37 output pin
In normal extended mode
Operation is not affected.
In multiplex extended mode
Operates as single-chip mode
In single-chip mode
When the pins are in the input states, the
corresponding input pull-up MOS is turned on
when a P3PCR bit is set to 1.
1
Single-Chip Mode (EXPE = 0)
P37 input pin
0
P37 output pin
1