General Selections - IDTECH SecureHead User Manual

4.3. General Selections

This group of configuration settings defines the basic operating parameters of SecureHead.
4.1.1. SPI Clock Phase and Polarity Settings
The clock phase and polarity of SPI interface can be adjusted. Both the host and device must be set to
the same SPI setting in order to communicate correctly.
<STX><S><79h><01h><SPI Settings><ETX><CheckSum>
SPI Settings:
'0' Clock phase = 0 and Polarity = 0. data are read on the clock's rising edge and data are
changed on a falling edge
'1' Clock phase = 0 and Polarity = 1. data are read on clock's falling edge and data are changed
on a rising edge.
'2' Clock phase = 1 and Polarity = 0. data are read on clock's falling edge and data are changed
on a rising edge.
'3' Clock phase = 1 and Polarity =1. data are read on clock's rising edge and data are changed
on a falling edge.
4.1.2. Change to Default Settings
<STX><S><18h><ETX><CheckSum>
This command does not have any <FuncData>. It returns all settings for all groups to their default
values.
4.1.3. MSR Reading Settings
Enable or Disable the SecureHead. If the reader is disabled, no data will be sent out to the host.
<STX><S><1Ah><01h><MSR Reading Settings><ETX><CheckSum>
MSR Reading Settings:
"0" MSR Reading Disabled
"1" MSR Reading Enabled
4.1.4. Decoding Method Settings
The SecureHead can support four kinds of decoded directions.
<STX><S><1Dh><01h><Decoding Method Settings><ETX><CheckSum>
Decoding Method Settings:
"0" Raw Data Decoding in Both Directions, send out in ID TECH mode
"1" Decoding in Both Directions. If the encryption feature is enabled, the key management
method used is DUKPT.
"2" Moving stripe along head in direction of encoding. If the encryption feature is enabled, the key
management method used is DUKPT.
"3" Moving stripe along head against direction of encoding. If the encryption feature is enabled, the
key management method used is DUKPT.
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SecureHead SPI Interface with FPC User Manual
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