DEMOKITCRX14 STMicroelectronics, DEMOKITCRX14 Datasheet - Page 22

• Manufacturer Part Number: DEMOKITCRX14
• Description: RFID EVALUATION KIT ISO14443-B
• Manufacturer: STMicroelectronics
• Type: Development kitr

Specifications of DEMOKITCRX14

• Contents: CD-ROM, CRX14 Board, USB Transceiver, Samples and Documentation
• Processor To Be Evaluated: CRX14
• Interface Type: I2C
• Operating Supply Voltage: 5 V
• For Use With/related Products: CRX14
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3704

CRX14
Table 7. CRX14 Request Frame Character Format
Request Start Of Frame
The Start Of Frame (SOF) described in
consists of:
–
–
–
–
Figure 22. Request Start Of Frame
Request End Of Frame
The End Of Frame (EOF) shown in
sists of:
–
–
–
Figure 23. Request End Of Frame
22/40
b
b
b
0
1
9
to b
a falling edge,
followed by ten Elementary Time Units (ETU)
each containing a logical ‘0’
followed by a single rising edge
followed by two ETUs, each containing a
logical ‘1’.
a falling edge,
followed by ten Elementary Time Units (ETU)
containing each a logical ‘0’,
followed by a single rising edge.
Bit
8
Start bit used to synchronize the transmission
Information Byte (instruction, address or data)
Stop bit used to indicate the end of the character
ETU
ETU
b 0
b 0
0
0
b 1
Description
b 1
0
0
Figure 23.
b 2
b 2
0
0
Figure 22.
b 3
b 3
0
0
con-
b 4
b 4
0
0
b 5
b 5
0
0
b 6
b 6
0
0
b 7
b 7
0
0
b
Information Byte is sent Least Significant Bit
first
b
0
9
= 0
= 1
b 8
b 8
0
0
b 9
b 9
0
0
b 10
1
Value
b 11
1
ai09251
ai09252