QT1100A-ISG View Datasheet(PDF) - Quantum Research Group
Part Name
Description
Manufacturer
QT1100A-ISG Datasheet PDF : 42 Pages
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Table 3-1 Control Commands
Commands are divided into two types: Control commands, which force the device into various modes or are used for serial communications management, and Status commands
which report back with information about the device or the sensing process.
Hex Page
0x00 16
0x01 17
0x02 18
0x03 18
0x04 18
0x05 18
Name
NULL
SETUPS
RUN
CAL ALL
RESET
SLEEP
Description
Bytes per
Command
Used to get data back in SPI mode
1
Enter Setups mode and stop sensing, followed by block
load of binary Setups data from host. Command must
be repeated 2 times within 100ms or it will fail. Returns
2
with 0x53 when ready to accept block.
Enter RUN mode without benefit of calibration.
Command must be repeated 2 times within 100ms to
2
execute or it will fail.
Force device to enter Cal mode to recalibrate all keys;
enters RUN mode afterwards automatically. Command
must be repeated 2 times within 100ms to execute or it
2
will fail.
Force device to reset. Sends back ‘0xFB’ to
acknowledge prior to reset. Command must be
2
repeated 2 times within 100ms to execute or it will fail.
Enter sleep. Command must be repeated 2 times within
100ms to execute or it will fail.
2
Bytes
Returned
1 in SPI
0 in UART
2
1
1
1
2
Return
Range
Notes
0..0xFF
SPI mode: Flushes pending data from QT1100A.
UART mode: Serves no function and evokes no response
Returns 0x53 after second 0x01 is received.
0x53 +
0xFE, 0xF0, During or after block load; returns 0xFE if pass, or, 0xF0 if
0xF1, 0xF2 CRC fail, or, 0xF1 if 100ms timeout between bytes, or,
0xF2 if EEPROM programming failed.
0xFD Returns 0xFD after the second 0x02 is received.
0xFC
Returns 0xFC after second 0x03 is received.
Check on progress of each key using 0x8k commands.
0xFB
Returns 0xFB to acknowledge command, then resets
device. After reset, part restarts, recalibrates, and runs
automatically (same as any other type of reset).
Returns 0xFA to acknowledge command; sleeps in low
0xFA + 0x05 power mode, wakes on WAKE pin; returns 0x05 after wake.
Force calibration of key #k where k= 0..9
0x1k 18
CAL key ‘k’
Command must be repeated 2 times within 100ms to
2
execute or it will fail.
Used in normal running mode to calibrate one specific key.
Normal sensing of other keys not affected. Calibration
1
0xF8 takes place in the key’s normal timeslot. Returns 0xF8 to
acknowledge command was received and the requested
calibration will take place.
LQ
23
Copyright © 2003-2005 QRG Ltd
QT1100A-ISG R3.02/1105
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