OM13005,598 NXP Semiconductors, OM13005,598 Datasheet - Page 268

• Manufacturer Part Number: OM13005,598
• Description: BOARD EVAL EM773 METER US PLUG
• Manufacturer: NXP Semiconductors
• Type: Other Power Managementr

Specifications of OM13005,598

• Design Resources: Plug Meter Schematics, Gerber Files USB Dongle Schematics, Gerber Files
• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 32-Bit
• Utilized Ic / Part: EM773FHN33,551
• Interface Type: USB
• Maximum Operating Temperature: + 150 C
• Operating Supply Voltage: 1.8 V to 3.6 V
• Product: Power Management Development Tools
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Primary Attributes: -
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: EM773, OL2381
• Other names: 568-6680

NXP Semiconductors
UM10415
User manual
20.4.5.8.5 Examples
20.4.5.9.1 Syntax
20.4.5.9.2 Operation
20.4.5.9.3 Restrictions
20.4.5.9.4 Condition flags
20.4.5.9.5 Examples
20.4.5.9 TST
20.4.6 Branch and control instructions
Test bits.
TST Rn, Rm
where:
This instruction tests the value in a register against another register. It updates the
condition flags based on the result, but does not write the result to a register.
The TST instruction performs a bitwise AND operation on the value in Rn and the value in
Rm. This is the same as the ANDS instruction, except that it discards the result.
To test whether a bit of Rn is 0 or 1, use the TST instruction with a register that has that bit
set to 1 and all other bits cleared to 0.
In these instructions, Rn and Rm must only specify R0-R7.
This instruction:
Table 234
Table 234. Branch and control instructions
Mnemonic
B{cc}
•
•
Rn is the register holding the first operand.
Rm the register to test against.
SXTH R4, R6
updates the N and Z flags according to the result
does not affect the C or V flags.
TST
UXTB R3, R1
shows the branch and control instructions:
R0, R1 ; Perform bitwise AND of R0 value and R1 value,
All information provided in this document is subject to legal disclaimers.
Brief description
Branch {conditionally}
Rev. 1 — 10 September 2010
; condition code flags are updated but result is discarded
; Obtain the lower halfword of the
Chapter 20: Appendix EM773 ARM Cortex-M0 reference
; value in R6 and then sign extend to
; 32 bits and write the result to R4.
; Extract lowest byte of the value in R10 and zero
; extend it, and write the result to R3
See
Section 20–20.4.6.1
UM10415
© NXP B.V. 2010. All rights reserved.
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