HD64F3048BF25 Renesas Electronics America, HD64F3048BF25 Datasheet - Page 292

• Manufacturer Part Number: HD64F3048BF25
• Description: IC H8 MCU FLASH 128K 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3048BF25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 8MHz
• 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): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 9 I/O Ports
9.2.2
Table 9.2 summarizes the registers of port 1.
Table 9.2
Address *
H'FFC0
H'FFC2
Note:
Port 1 Data Direction Register (P1DDR)
P1DDR is an 8-bit write-only register that can select input or output for each pin in port 1.
Modes 1 to 4 (Expanded Modes with On-Chip ROM Disabled): P1DDR values are fixed at 1
and cannot be modified. Port 1 functions as an address bus.
Modes 5 and 6 (Expanded Modes with On-Chip ROM Enabled): A pin in port 1 becomes an
address output pin if the corresponding P1DDR bit is set to 1, and a generic input pin if this bit is
cleared to 0.
Mode 7 (Single-Chip Mode): Port 1 functions as an input/output port. A pin in port 1 becomes an
output pin if the corresponding P1DDR bit is set to 1, and an input pin if this bit is cleared to 0.
In modes 5 to 7, P1DDR is a write-only register. Its value cannot be read. All bits return 1 when
read.
Rev. 3.00 Sep 27, 2006 page 264 of 872
REJ09B0325-0300
Bit
Modes
1 to 4
Modes
5 to 7
* Lower 16 bits of the address.
Initial value
Read/Write
Initial value
Read/Write
Register Descriptions
Port 1 Registers
Name
Port 1 data direction
register
Port 1 data register
P1 DDR
7
W
7
1
0
P1 DDR
6
W
6
1
0
P1 DDR
Abbreviation
P1DDR
P1DR
5
W
5
1
0
Port 1 data direction 7 to 0
These bits select input or
output for port 1 pins
P1 DDR
4
W
4
1
0
R/W
W
R/W
P1 DDR
3
W
3
1
0
Modes 1 to 4
H'FF
H'00
P1 DDR
2
W
2
1
0
Initial Value
P1 DDR
1
W
1
1
0
Modes 5 to 7
H'00
H'00
P1 DDR
0
W
0
1
0