DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 301

• Manufacturer Part Number: DF3048BVX25V
• Description: MCU 3/5V 128K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048BVX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.5.2
Table 9.6 summarizes the registers of port 4.
Table 9.6
Address *
H'FFC5
H'FFC7
H'FFDA
Note:
Port 4 Data Direction Register (P4DDR)
P4DDR is an 8-bit write-only register that can select input or output for each pin in port 4.
Modes 1 to 6 (Expanded Modes): When all areas are designated as 8-bit-access areas using the
bus width control register (ABWCR) of the bus controller, selecting 8-bit bus mode, port 4
functions as a generic input/output port. A pin in port 4 becomes an output port if the
corresponding P4DDR bit is set to 1, and an input port if this bit is cleared to 0.
When at least one area is designated as a 16-bit-access area, selecting 16-bit bus mode, port 4
functions as part of the data bus regardless of the value in P4DDR.
Mode 7 (Single-Chip Mode): Port 4 functions as an input/output port. A pin in port 4 becomes an
output port if the corresponding P4DDR bit is set to 1, and an input port if this bit is cleared to 0.
P4DDR is a write-only register. Its value cannot be read. All bits return 1 when read.
P4DDR is initialized to H'00 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting.
Bit
Initial value
Read/Write
* Lower 16 bits of the address.
Register Descriptions
Port 4 Registers
Name
Port 4 data direction register
Port 4 data register
Port 4 input pull-up MOS control
register
P4 DDR
7
W
7
0
P4 DDR
6
W
6
0
P4 DDR
5
W
5
0
Port 4 data direction 7 to 0
These bits select input or output for port 4 pins
P4 DDR
4
W
4
0
P4DDR
P4DR
Abbreviation
P4PCR
Rev. 3.00 Sep 27, 2006 page 273 of 872
P4 DDR
3
W
3
0
P4 DDR
2
W
2
0
R/W
W
R/W
R/W
P4 DDR
Section 9 I/O Ports
REJ09B0325-0300
1
W
1
0
Initial Value
H'00
H'00
H'00
P4 DDR
0
W
0
0