DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 321

• 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: -

9.10.2
Table 9.16 summarizes the registers of port 9.
Table 9.16 Port 9 Registers
Address *
H'FFD0
H'FFD2
Note:
Port 9 Data Direction Register (P9DDR)
P9DDR is an 8-bit write-only register that can select input or output for each pin in port 9.
Bits 7 and 6 are reserved. They cannot be modified and are always read as 1.
While port 9 acts as an I/O port, a pin in port 9 becomes an output port if the corresponding
P9DDR bit is set to 1, and an input port if this bit is cleared to 0. For selecting the pin function, see
table 9.17.
P9DDR is a write-only register. Its value cannot be read. All bits return 1 when read.
P9DDR is initialized to H'C0 by a reset and in hardware standby mode. In software standby mode
it retains its previous setting. If a P9DDR bit is set to 1 while port 9 acts as an I/O port, the
corresponding pin maintains its output state in software standby mode.
Bit
Initial value
Read/Write
* Lower 16 bits of the address.
Register Descriptions
Name
Port 9 data direction register
Port 9 data register
Reserved bits
7
1
6
1
P9 DDR
5
W
5
0
P9 DDR
Abbreviation
P9DDR
P9DR
4
W
4
0
Port 9 data direction 5 to 0
These bits select input or
output for port 9 pins
Rev. 3.00 Sep 27, 2006 page 293 of 872
P9 DDR
3
W
3
0
P9 DDR
R/W
W
R/W
2
W
2
0
P9 DDR
Section 9 I/O Ports
Initial Value
H'C0
H'C0
REJ09B0325-0300
1
W
1
0
P9 DDR
0
W
0
0