frame
Class SelectFrame

java.lang.Object
  frame.RFIDFrame
      frame.RtoTFrame
          frame.SelectFrame

All Implemented Interfaces:

java.lang.Cloneable

public class SelectFrame
extends RtoTFrame

Reader to tags Select frame.

Field

Length

Value

command

4

1010 (decimal 10)

Target

1

0	Inventoried
1	SL

Action

3

See Table 6.19 in Class 1 Generation 2 UHF Air Interface Protocol Standard Version 1.0.9: "Gen 2", linked from this page.

Ptr

7

0000000 - 1111111 (unsigned int 0-128)
Offset into EPC to begin matching against mask.

Length

8

(unsigned) length of Mask field

Mask

variable

Bit mask to match against substring of EPC

CRC

16
(Optional)

Optional CRC covering entire frame.

Nested Class Summary

Nested classes/interfaces inherited from class frame.RFIDFrame

RFIDFrame.FrameType

Field Summary

Fields inherited from class frame.RtoTFrame

ACK_CMD, CORRUPTED_CMD, QUERY_CMD, QUERYADJ_CMD, QUERYREP_CMD, RtoT_CMD_FIELD, RtoT_CMD_WIDTH, SELECT_CMD

Fields inherited from class frame.RFIDFrame

CRC_SIZE, data, hasCRC, isCorrupted

Constructor Summary

SelectFrame(int target, int action, int ptr, int len, BitMemory mask)

Method Summary

static int	getAction(RFIDFrame f) Extract action field bits from f.
static int	getLen(RFIDFrame f) Extract len field bits from f.
static int	getMaskBit(RFIDFrame f, int offset)
static int	getPtr(RFIDFrame f) Extract ptr field bits from f.
static int	getTarget(RFIDFrame f) Extract target field bits from f.

Methods inherited from class frame.RtoTFrame

getCommand

Methods inherited from class frame.RFIDFrame

clone, dup, flipBit, getSize, getType, hasCRC, isCollision, isCorrupted, markCorrupted, toString

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SelectFrame

public SelectFrame(int target,
                   int action,
                   int ptr,
                   int len,
                   BitMemory mask)

Method Detail

getTarget

public static int getTarget(RFIDFrame f)

Extract target field bits from f.

getAction

public static int getAction(RFIDFrame f)

Extract action field bits from f.

getPtr

public static int getPtr(RFIDFrame f)

Extract ptr field bits from f.

getLen

public static int getLen(RFIDFrame f)

Extract len field bits from f.

getMaskBit

public static int getMaskBit(RFIDFrame f,
                             int offset)