參數(shù)資料
型號(hào)： QT60168C-ASG
廠商： Atmel
文件頁(yè)數(shù)： 8/28頁(yè)
文件大?。?/td> 0K
描述： IC TOUCH SENSOR 16KEY 32TQFP
標(biāo)準(zhǔn)包裝： 250
系列： QMatrix™, QProx™
類型： 電容性
輸入數(shù)/鍵： 16 鍵
分辨率（位）： 9，11 b
評(píng)估套件： 可供
數(shù)據(jù)接口： 串行，SPI?
電源電壓： 3 V ~ 5 V
電流 - 電源： 25mA
工作溫度： -40°C ~ 105°C
安裝類型： 表面貼裝
封裝/外殼： 32-TQFP
供應(yīng)商設(shè)備封裝： 32-TQFP（7x7）
包裝： 托盤
配用： 427-1087-ND - BOARD EVAL QT60248-AS QMATRIX
13
2nd return byte is CRC-8 of cmmd + return data
Yes
0..0xFF
2
1
FMEA bitfield on X, Y lines
FMEA status
0x0C
13
4th return byte is CRC-8 of cmmd + return data
Yes
0..0xFF
3 bytes
4
1
Error bit fields
Error flags for all
0x0B
13
4th return byte is CRC-8 of cmmd + return data
Yes
0..0xFF
3 bytes
4
1
Sends back all key detect status bits (bitfield)
Report all keys
0x07
13
Bit 7: 1= indicates 2 or more touches if set.
Bit 6: 1= any of the following conditions prevail: calibrating, key(s)
failed cal 5 times, sync fail, comms error, FMEA failure.
Bit 5: Unused
Bits 4..0: indicates key number (0..23) of first key touched; reads
0x1F (31 decimal) if no touch.
2nd return byte is CRC-8 of cmmd + return data
Yes
0..0xFF
2
1
Get indication of first touched key + others
Report 1st key
0x06
12
Bit 7: reserved
Bit 6: 1= comms error: unrecognized command received
This bit can be reset by the 0x0F cmmd
Bit 5: 1= FMEA failure
Bit 4: 1= Reserved
Bit 3: 1= line sync failure
Bit 2: 1= cal failed 5 times on an enabled key, or, an enabled key has
a low reference (Ref < LSL)
Bit 1: 1= any key in calibration
Bit 0: 1= any key is in detect
2nd return byte is CRC-8 of cmmd + return data
Yes
0..0xFF
2
1
Get general part status.
General status
0x05
12
Returns 1’s complement of command to acknowledge command prior
to reset. If 2 commands not received in 100ms, times out and no
response is issued.
-
0xFB
1
2
Force device to reset. Command must be
repeated 2x consecutively without any
intervening command in 100ms to execute
Force reset
0x04
12
Returns 1’s complement of command to acknowledge cmd once the
cal has been initiated.
If 2 commands not received in 100ms, times out and no response is
issued.
-
0xFC
1
2
Force device to recalibrate all keys; re-enters
RUN mode afterwards automatically; 0x03 must
be repeated 2x consecutively without any
intervening command in 100ms to execute
CAL all
0x03
12
First 0xFE issued when ready to get data, second 0xFE issued when
all loaded and burned; else timeout.
If 2 commands not received in 100ms, times out and no response is
issued. Part will timeout if each byte not received within 100ms of
previous byte.
If CRC failure, returns 0x00 instead of 0xFE
Data block length is 100 + 1 (added +1 byte is CRC-8). LSL should be
sent low byte first. A CRC of 0x00 is also acceptable in which
case the CRC is not checked.
The internal EEPROM will be programmed regardless of CRC health.
-
0xFE
+ 0xFE
OR
0xFE
+ 0x00 (err)
2
+100
+1
Enter Setups, stop sensing; followed by block
load of binary Setups of length ‘nn’. Command
must be repeated 2x consecutively without any
intervening command in 100ms to execute.
Sensing auto-restarts, however, the device
should be reset after the block load to ensure all
new setups will take effect.
Enter Setups
mode
0x01
11
Flushes pending data from QT; one required to extract each response
byte.
-
0..0xFF
1
Used to get data back in SPI mode
Null command
0x00
Page
Notes
CRC
Rtn range
# Rtnd
#/Cmd
Description
Name
Hex
Table 4.2 Command Summary
lQ
16
QT60248-AS R4.02/0405
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