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33884 Datasheet(PDF) 13 Page - Freescale Semiconductor, Inc

No. de pieza 33884
Descripción Electrónicos  Switch Monitor Interface
PDF  21 Pages
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Fabricante Electrónico  FREESCALE [Freescale Semiconductor, Inc]
Página de inicio  http://www.freescale.com
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33884 Datasheet(HTML) 13 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
13
33884
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
LOGIC COMMANDS AND REGISTERS
PROGRAMMING AND CONFIGURATION
DESCRIPTION
SPI Commands from Microcontroller / Command Protocol
(Data into SI)
SLEEP COMMAND
The Sleep command places the IC in Sleep mode and
essentially turns the part OFF. By definition, a hardware reset
sends/keeps the IC in Sleep mode. All inputs are Tri-Stated,
disabling all input blocks and all internal pull-ups/pull downs.
Only a SPI command can take the IC out of Sleep mode.
Exiting this mode requires a valid Run, Tri-State, or Metallic
command.
Table 5. SPI Command Protocol
MSB
LSB
Command
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Sleep (Default)
0
0
0
0
x
x
x
x
x
x
x
x
x
x
x
x
Run
0
0
0
1
MOD2 MOD1
ST3
ST2
ST1
—
WT2
WT1
CP4
CP3
CP2
CP1
Tri-State
0
0
1
1
TG6
TG5
TG4
TG3
TG2
TG1
TP4
TP3
TP2
TP1
TB2
TB1
Metallic
0
1
0
1
MG6
MG5
MG4
MG3
MG2
MG1
MP4
MP3
MP2
MP1
MB2
MB1
IC Test Mode
1
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Reset Values:
Run Register
—
—
—
—
U
U
U
U
U
U
U
U
U
U
U
U
Tri-State
Register
—
—
—
—
0
0
0
0
0
0
0
0
0
0
0
0
Metallic Register
—
—
—
—
U
U
U
U
U
U
U
U
U
U
U
U
U =Unknown value coming out of Sleep mode. It be must configured with
Run and Metallic commands. Note: the remaining combinations of bits
[16;13] are non-functional (0010. 0100. 0110. 0111).
MOD[2:1] = Operating mode
CP[4:1] = Configure programmable switch
TG[6:1] = Tri-State switch-to-ground
TB[2:1] = Tri-State switch-to-battery
TP[4:1] = Tri-State programmable switch
ST[3:1] = Sample OFF time
WT[3:1] = Wake up time
MG[6:1] = Metallic switch-to-ground
MB[2:1] = Metallic switch-to-battery
MP[4:1] = Metallic programmable switch
Table 6. Sleep Command
MSB
LSB
Command
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Sleep (Default)
0
0
0
0
x
x
x
x
x
x
x
x
x
x
x
x



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