DF2148BFA20 Renesas Electronics America, DF2148BFA20 Datasheet - Page 130

• Manufacturer Part Number: DF2148BFA20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148BFA20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SCI, X-Bus
• Peripherals: PWM, WDT
• Number Of I /o: 74
• 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: -
• Other names: HD64F2148BFA20; HD64F2148BFA20

Section 2 Instruction Descriptions
2.2.31 (1)
EXTU (EXTend as Unsigned)
Operation
0
Assembly-Language Format
EXTU.W Rd
Operand Size
Word
Description
This instruction extends the lower 8 bits in a 16-bit register Rd to word data by padding with
zeros. That is, it clears the upper 8 bits of Rd (bits 15 to 8) to 0.
Available Registers
Rd: R0 to R7, E0 to E7
Operand Format and Number of States Required for Execution
Notes
Rev. 4.00 Feb 24, 2006 page 114 of 322
REJ09B0139-0400
Register direct
Addressing
(<bits 15 to 8> of Rd)
Mode
Bit 15
EXTU (W)
Don’t care
Mnemonic
8 bits
EXTU.W
Rd
7
Operands
8 bits
Rd
1st byte
1
0
7
Condition Code
H: Previous value remains unchanged.
N: Always cleared to 0.
Z: Set to 1 if the result is zero; otherwise
V: Always cleared to 0.
C: Previous value remains unchanged.
Bit 15
2nd byte
5
Instruction Format
cleared to 0.
Zero extension
—
I
rd
UI H
—
8 bits
—
3rd byte
—
U
Rd
7
N
0
8 bits
4th byte
Z
Zero Extension
V
0
—
0
States
No. of
C
1