DF2506BR26DV Renesas Electronics America, DF2506BR26DV Datasheet - Page 258

• Manufacturer Part Number: DF2506BR26DV
• Description: IC H8S/2506 MCU FLASH 176-LFBGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2506BR26DV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 26MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 9 I/O Ports
9.3
Port 3 is an 8-bit I/O port and has the following registers.
The P34, P35, SCK1, and SCK4 pins of port 3 are NMOS push-pull outputs.
• Port 3 data direction register (P3DDR)
• Port 3 data register (P3DR)
• Port 3 register (PORT3)
• Port 3 open drain control register (P3ODR)
9.3.1
P3DDR specifies input or output of the port 3 pins using the individual bits. P3DDR cannot be
read; if it is, the read value is undefined. Since this register is a write-only register, bit-
manipulation instructions should not be used when writing. See section 2.9.4, Access Method for
Registers with Write-only Bits.
Rev. 6.00 Sep. 24, 2009 Page 210 of 928
REJ09B0099-0600
Bit
7
6
5
4
3
2
1
0
Bit Name
P37DDR
P36DDR
P35DDR
P34DDR
P33DDR
P32DDR
P31DDR
P30DDR
Port 3
Port 3 Data Direction Register (P3DDR)
Initial Value
0
0
0
0
0
0
0
0
R/W
W
W
W
W
W
W
W
W
Description
When a pin is specified as a general purpose I/O
port, setting this bit to 1 makes the corresponding
port 3 pin an output port. Clearing this bit to 0 makes
the pin an input port.