ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 143

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.15.2
13.15.2.1
13.15.2.2
13.15.2.3
13.15.2.4
13.15.2.5
6430D–ATARM–25-Mar-11
SBFX
UBFX
SBFX and UBFX
Syntax
Operation
Restrictions
Condition flags
Examples
R0, R1, #20, #4
R8, R11, #9, #10 ; Extract bit 9 to bit 18 (10 bits) from R11 and zero
Signed Bit Field Extract and Unsigned Bit Field Extract.
where:
cond
Rd
Rn
lsb
width
SBFX extracts a bitfield from one register, sign extends it to 32 bits, and writes the result to the
destination register.
UBFX extracts a bitfield from one register, zero extends it to 32 bits, and writes the result to the
destination register.
Do not use SP and do not use PC
These instructions do not affect the flags.
SBFX{cond} Rd, Rn, #lsb, #width
UBFX{cond} Rd, Rn, #lsb, #width
; Extract bit 20 to bit 23 (4 bits) from R1 and sign
; extend to 32 bits and then write the result to R0.
; extend to 32 bits and then write the result to R8
is an optional condition code, see
is the destination register.
is the source register.
is the position of the least significant bit of the bitfield.
lsb must be in the range 0 to 31.
is the width of the bitfield and must be in the range 1 to 32− lsb.
.
“Conditional execution” on page
SAM3U Series
100.
143