QT60161B-A QUANTUM [Quantum Research Group], QT60161B-A Datasheet - Page 25

• Manufacturer Part Number: QT60161B-A
• Description: 16 KEY QMATRIX KEYPANEL SENSOR IC
• Manufacturer: QUANTUM [Quantum Research Group]

Lowercase 'L'. This get-only command reports back with the
value of the prior command received by the part. The
command also reports back any erroneous commands,
allowing the host device to verify that a command was
correctly received.
If this command is repeated, the second and subsequent
instances of 'l' will report back with 0x6C.
There is no put version of the command.
Section 3.11, p. 9
Lowercase 'R'. This put-only command hard-resets the part.
The command 0x72 must be followed by a null (0x00) within
100ms or the command will fail. The part must be in Put
mode for this command to work.
A reset occurs about 16ms after the echo byte 0x72 is
transmitted back to the host. The part will resume
communication and sensing in accordance with the timing
shown in Section 3.13.
If for some reason the part is unable to send back the echo
character 0x72, the command will fail.
There is no get version of the command.
Uppercase 'V'. This get-only command returns the part
version number.
There is no put version of the command.
Uppercase 'W'. This get-only command returns the part
signature as follows:
There is no put version of this command.
Section 3.14, p. 9
Uppercase 'Z'. This put-only command forces the device to
enter sleep mode. The command 0x5A must be followed by a
lQ
l
r
V
W
Z
Put
Get
Put
Get
Put
Get
Put
Get
Put
Get
0x10
0x6C - R
0x72 - R
0x5A - E
0x56 - R
0x57 - R
Scope
Scope
Scope
Scope
Scope
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
(16 decimal)
n/a
n/a
ESET
ETURN
ETURN
NTER
ETURN
D
Bytes / Cmd
S
Bytes / Cmd
Bytes / Cmd
Bytes / Cmd
Bytes / Cmd
L
EVICE
P
LEEP
P
AST
ART
ART
n/a
1
n/a
n/a
n/a
n/a
1
2
1
2
C
V
S
OMMAND
ERSION
IGNATURE
# Bytes Rtnd
# Bytes Rtnd
# Bytes Rtnd
n/a
2nd Byte
2nd Byte
C
1
0x00
0x00
HARACTER
n/a
n/a
n/a
n/a
1
1
©Quantum Research Group Ltd.
Returns
*0x5A, 0x5A
0x00..0xFF
0x00..0xFF
0x10
Returns
Returns
Returns
Returns
n/a
0x72
n/a
n/a
n/a
n/a
25
null (0x00) within 100ms or the command will fail. The part
must be in Put mode for this command to work.
The command returns 0x5A immediately before going to
sleep, and a second 0x5A upon waking up.
If for some reason the device is unable to transmit the first
return ‘Z’ character back to the host, for example due to the
host not releasing the SS line, the part will completely reset
after about 2 seconds.
The part will reawaken after a logic low is detected for 10µs
on pin 11 (RST’ pin, see Section 3.11). The device then
sends a second ‘Z’ back to the host, and resumes from its
prior state before it went to sleep without the need for
recalibration. The device resumes in Get mode only.
There is no get version of the command.
Section 4, p. 11
Ctrl-Q. This is a put-only command that sets the UART baud
rate and the SPI clock rate. All timings assume a 12MHz
oscillator. The part must be in Put mode for this command to
work.
SPI Settings -
The acceptable values of the operand for SPI use are:
These values define the maximum SPI clock rate in Master
mode (part originates the clock).
Note that when the part is receiving data, the host can send
to the device at rates up to 3MHz even if the rate setting of ^Q
is slower.
Refer to Sections 4.3 and 4.4 for SPI timing details.
New settings do not become effective until the device has
been powered off and back on again or after the reset (‘r’)
command.
UART Settings -
The acceptable values of the operand for UART use are:
There is no get version of this function.
Refer to Section 4.5for UART details.
New settings do not become effective until the device has
been powered off and back on again or after the reset (‘r’)
command.
^Q
Get
Put
0:
1:
2:
3:
0:
1:
2:
3:
4:
0x11 - D
93.75 kHz
187.5 kHz
750 kHz
3 MHz
9600 baud
14400 baud
19200 baud
38400 baud
57600 baud
Scope
n/a
n/a
ATA
www.qprox.com QT60161B / R1.03
R
Bytes / Cmd
ATE
2
1
S
ELECTION
2nd Byte Range
0x00..0x04
n/a
0x00..0x04
Returns
0x11