HD6413008VXI25 Renesas Electronics America, HD6413008VXI25 Datasheet - Page 200

• Manufacturer Part Number: HD6413008VXI25
• Description: MCU 3V 0K I-TEMP 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD6413008VXI25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 35
• Program Memory Type: ROMless
• 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: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

7. I/O Ports
In the H8/3008, following a reset P8
P8DDR is a write-only register. Its value cannot be read. All bits return 1 when read.
P8DDR is initialized to H'F0 by a reset and in hardware standby mode. In software standby mode
P8DDR retains its previous setting. Therefore, if a transition is made to software standby mode
while port 8 is functioning as an input/output port and a P8DDR bit is set to 1, the corresponding
pin maintains its output state.
Port 8 Data Register (P8DR): P8DR is an 8-bit readable/writable register that stores output data
for port 8. When port 8 functions as an output port, the value of this register is output. When a bit
in P8DDR is set to 1, if port 8 is read the value of the corresponding P8DR bit is returned. When a
bit in P8DDR is cleared to 0, if port 8 is read the corresponding pin logic level is read.
Bits 7 to 5 are reserved. They are fixed at 1, and cannot be modified.
P8DR is initialized to H'E0 by a reset and in hardware standby mode. In software standby mode it
retains its previous setting.
Rev.4.00 Aug. 20, 2007 Page 154 of 638
REJ09B0395-0400
Bit
Initial value
Read/Write
⎯
⎯
7
1
Reserved bits
⎯
⎯
6
1
4
functions as the CS
⎯
⎯
5
1
R/W
P8
4
0
4
0
output, while CS
R/W
P8
3
0
Port 8 data 4 to 0
These bits store data
for port 8 pins
3
R/W
P8
2
0
2
1
to CS
R/W
P8
1
0
3
1
are input ports.
R/W
P8
0
0
0