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33993 데이터시트(PDF) 16 Page - Freescale Semiconductor, Inc

부품명 33993
상세설명  Multiple Switch Detection Interface
PDF  28 Pages
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제조업체  FREESCALE [Freescale Semiconductor, Inc]
홈페이지  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

33993 데이터시트(HTML) 16 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
16
Freescale Semiconductor
33993
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
SPI COMMAND SUMMARY
Table 14 below provides a comprehensive list of SPI
commands recognized by the 33993 and the reset state of
each register. Table 15 and Table 16 contain the Serial
Output (SO) data for input voltages greater or less than the
threshold level. Open switches are always indicated with a
logic [0], closed switches are indicated with logic [1].
Table 14. SPI Command Summary
MSB
Command Bits
Setting Bits
LSBI
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Switch Status
Command
0
0
0
0
0
0
0
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Settings Command
Bat=1, Gnd=0
(Default state = 1)
0
0
0
0
0
0
0
1
X
X
X
X
X
X
X
X
SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
Wake-Up/Interrupt
Bit
Wake-Up=1
Nonwake-Up=0
(Default state = 1)
0
0
0
0
0
0
1
0
X
X
X
X
X
X
X
X
SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
0
0
0
0
0
0
1
1
X
X
SG1
3
SG1
2
SG1
1
SG1
0
SG9 SG8 SG7 SG6 SG5 SG4 SG3 SG2 SG1 SG0
Metallic Command
Metallic = 1
Non-metallic = 0
(Default state = 1)
0
0
0
0
0
1
0
0
X
X
X
X
X
X
X
X
SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
0
0
0
0
0
1
0
1
X
X
SG1
3
SG1
2
SG1
1
SG1
0
SG9 SG8 SG7 SG6 SG5 SG4 SG3 SG2 SG1 SG0
Analog Command
0
0
0
0
0
1
1
0
X
X
X
X
X
X
X
X
X
16m
A
0
2.0m
A
0
0
0
0
0
0
Wetting Current
Timer
Enable Command
Timer ON = 1
Timer OFF = 0
(Default state = 1)
0
0
0
0
0
1
1
1
X
X
X
X
X
X
X
X
SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
0
0
0
0
1
0
0
0
X
X
SG1
3
SG1
2
SG1
1
SG1
0
SG9 SG8 SG7 SG6 SG5 SG4 SG3 SG2 SG1 SG0
Tri-State Command
Input Tri-State=1
Input Active = 0
(Default state = 1)
0
0
0
0
1
0
0
1
X
X
X
X
X
X
X
X
SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
0
0
0
0
1
0
1
0
X
X
SG1
3
SG1
2
SG1
1
SG1
0
SG9 SG8 SG7 SG6 SG5 SG4 SG3 SG2 SG1 SG0
Calibration
Command
(Default state -
uncalibrated)
0
0
0
0
1
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Sleep Command
(See Sleep Mode
on page 17)
0
0
0
0
1
1
0
0
X
X
X
X
X
X
X
X
X
X
int
timer
int
timer
int
timer
scan
timer
scan
timer
scan
timer
Reset Command
0
1
1
1
1
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SO Response Will
Always Send
them
flg
int
flg
SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0
SG1
3
SG1
2
SG1
1
SG1
0
SG9 SG8 SG7 SG6 SG5 SG4 SG3 SG2 SG1 SG0



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