Figure 4-1 Suggested Communications Flow
Power On or Hardware Reset
0x0F
Get
0x0E
Setups CRC
Check
0x01
Load Setups
Block
0x04
Force Reset
0xF0
Setups CRC
failed 1x
'Last command'
returned
0xF0 not
returned
CRC is OK
No key,
Setups CRC failed 2x
no error
0x06
~10ms Delay
Report 1st Key
0x05
Get
General Status
Error Flag
(takes
2 Keys
m
Detected
precedence)
0x0F
Get
Only 1 Key
in Detect
Comms
Error
'Last command'
(clear error)
0x07
Report all
detections
calibration fail, or
FMEA fail, or
Keys OK
multiple errors
Internal Host
Processes
resolvable
error
Key Detection(s) Processing
Error Handling
Comms with
QT
Stuck Key
Detected
(optional)
FMEA Calibration
Error
Error
Note: CRC errors or incorrect
responses should cause
each transmission to retry
Done
0x0B
0x0C
0xck
Get
Errors for All
Keys
Get
Cal Key 'k'
FMEA Status
lQ
15
QT60248-AS R4.02/0405
QUANTUM [ QUANTUM RESEARCH GROUP ]
