HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 75
HD64F3048VTF8
Manufacturer Part Number
HD64F3048VTF8
Description
IC H8 MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.HD64F3048F16.pdf
(907 pages)
Specifications of HD64F3048VTF8
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)
2.7 V ~ 5.5 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
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F3048VX8
- Current page: 75 of 907
- Download datasheet (6Mb)
P4
In this example, the BCLR instruction is used to make P4
Before Execution of BCLR Instruction
Input/output
DDR
DR
Execution of BCLR Instruction
BCLR
After Execution of BCLR Instruction
Input/output
DDR
DR
Explanation of BCLR Instruction
To execute the BCLR instruction, the CPU begins by reading P4DDR. Since P4DDR is a write-
only register, it is read as H'FF, even though its true value is H'3F.
Next the CPU clears bit 0 of the read data, changing the value to H'FE.
Finally, the CPU writes this value (H'FE) back to DDR to complete the BCLR instruction.
As a result, P4
are set to 1, making P4
The BCLR instruction can be used to clear flags in the internal I/O registers to 0. In an interrupt-
handling routine, for example, if it is known that the flag is set to 1, it is not necessary to read the
flag ahead of time.
5
to P4
#0, @P4DDR
0
are set as output pins, and are in the low-level output state.
0
DDR is cleared to 0, making P4
P4
Input
0
1
P4
Output
1
1
7
7
7
and P4
P4
Input
0
0
P4
Output
1
0
; Execute BCLR instruction on DDR
6
6
6
output pins.
P4
Output
1
0
P4
Output
1
0
5
5
0
P4
Output
1
0
P4
Output
1
0
an input pin. In addition, P4
4
4
0
Rev. 7.00 Sep 21, 2005 page 49 of 878
an input port.
P4
Output
1
0
P4
Output
1
0
3
3
P4
Output
1
0
P4
Output
1
0
2
2
7
DDR and P4
P4
Output
1
0
P4
Output
1
0
REJ09B0259-0700
1
1
Section 2 CPU
P4
Output
1
0
P4
Input
0
0
6
DDR
0
0
Related parts for HD64F3048VTF8
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
KIT STARTER FOR M16C/29
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/2D
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
R0K33062P STARTER KIT
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/23 E8A
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/25
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER H8S2456 SHARPE DSPLY
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C38C
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C35C
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8CL3AC+LCD APPS
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR RX610
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R32C/118
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT DEV RSK-R8C/26-29
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR SH7124
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR H8SX/1622
Manufacturer:
Renesas Electronics America
Datasheet: