Product Specs

Confidential
SPD RFID Reader 2021-09-23
SPD6873160007R07.docx Page 6 of 20
1. Introduction
This specification document describes the hardware-level specification for the RFID Reader.
1.1. Background and context
The RFID Reader is designed to operate in industrial vehicles. The objective of the RFID Reader is
to support operator identification and access control.
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Figure 1-1 shows the context diagram of the RFID Reader. The RFID Reader shall be mounted in
an accessible area in a vehicle. After powering up, it accepts RFID cards. Once it detects the RFID,
the data read from the card or device will be sent to the master controller over RS232 port.
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Figure 1-1: Context diagram of the RFID Reader
1.2. Intended audience and document goal
The intended audience of this specification document consists of:
• Customers; for whom it constitutes a technical user manual and datasheet.
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It is assumed that the reader of this document is familiar with common IT and electronics
terminology, and has knowledge of analogue and digital electronic designs and similar products.
1.3. Definitions and Abbreviations
1.3.1. Definitions
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Text marking
Marked text
Text needs to be changed or completed.
Marked text
Text has changed compared to the previous release.
Numbers
‘a’
Numeric binary notation (a can be multiple 0s or 1s). E.g. ‘010’ is a 3-bit value
representing the binary number two. This kind of notation implies a specific bit length.
‘aa.aaaa’
Numeric binary notation with ‘.’ separations for clear reading of long binary numbers.
0xa
Numeric hexadecimal notation (a can be a digit 0 through 9, A through F). E.g. 0x1A is
hexadecimal number twenty-six. This kind of notation does not directly imply a bit
length.
0xaa.aaaa
Numeric hexadecimal notation with ‘.’ separations for clear reading of long hexadecimal
numbers.
ad
Numeric (explicit) decimal notation. This kind of notation does not directly imply a bit
length.
X[b:a]
Vector notation for vector X with bit range b downto a (little endian notation).
Text style
SIGNAL_THIS
Italic capticals with optional underscore. Represent an active high signal.