MCZ33975EK Freescale Semiconductor, MCZ33975EK Datasheet - Page 20

• Manufacturer Part Number: MCZ33975EK
• Description: IC DETECTOR MULT SWITCH 32-SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MCZ33975EK

• Applications: Automotive
• Interface: SPI
• Voltage - Supply: 5.5 V ~ 28 V
• Package / Case: 32-SOIC (7.5mm Width) Exposed Pad, 32-eSOIC, 32-HSOIC
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 13. Calibration Command
Table 14. Reset Command
CALIBRATION OF TIMERS
may calibrate the internal timers using the calibration
command (refer to
receives the calibration command, the device expects 512μs
logic [0] calibration pulse on the
calibrate the internal clock. No other SPI pins should
transition during this 512μs calibration pulse. Because the
RESET
Reset (POR) state. Refer to
SPI COMMAND SUMMARY
commands recognized by the 33975 and the reset state of
each register.
Table 15. SPI Command Summary
20
33975
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Switch Status
Command
Settings Command
Bat=1, Gnd=0
(Default state =
1)
Wake-up/Interrupt Bit
Wake-up=1
Nonwake-up=0
(Default state = 1)
Metallic Command
Metallic = 1
Non-metallic = 0
(Default state =
1)
Analog Command
23
23
0
0
In cases where an accurate time base is required, the user
The reset command resets all registers to Power-ON
Table 15
22
22
0
1
Calibration Command
21
21
below provides a comprehensive list of SPI
0
1
Reset Command
MSB
Table 16
20
20
23
0
1
0
0
0
0
0
0
0
Table
22
19
19
0
0
0
0
0
0
0
1
1
and
13). After the 33975 device
Command Bits
21
0
0
0
0
0
0
0
18
18
Table 17
Table
0
1
20
0
0
0
0
0
0
0
CS
17
17
1
1
15, page 20, for POR
pin. The pulse is used to
19
0
0
0
0
0
0
0
contain the Serial
16
16
1
1
18
0
0
0
0
1
1
1
15
15
X
X
17
0
0
1
1
0
0
1
14
14
X
X
16
0
1
0
1
0
1
0
13
13
15
X
X
X
X
X
X
X
X
X
14
X
X
X
X
X
X
X
12
12
X
X
SG13 SG12 SG11 SG10 SG9 SG8 SG7 SG6
SG13 SG12 SG11 SG10 SG9 SG8 SG7 SG6
13
X
X
X
X
X
11
11
X
X
oscillator frequency changes with temperature, calibration is
required for an accurate time base. Calibrating the timers has
no affect on the quiescent current measurement. The
calibration command simply makes the time base more
accurate. The calibration command may be used to update
the device on a periodic basis. All reset conditions clear the
calibration register and places the device in the uncalibrated
state.
states or the paragraph entitled
page
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].
Setting Bits
12
X
X
X
X
X
10
10
X
X
16
11
X
X
X
X
X
of this datasheet.
X
X
9
9
Command Bits
Command Bits
10
X
X
X
X
X
X
X
8
8
X
X
X
X
X
9
X
X
7
7
8
X
X
X
X
X
Analog Integrated Circuit Device Data
SP7
SP7
SP7
X
X
X
X
7
6
6
32mA
SP6
SP6
SP6
6
X
0
X
X
5
5
Power-ON Reset (POR)
4.0m
SP5
SP5
SG5
SP5
SG5
X
A
5
0
Freescale Semiconductor
X
X
4
4
SP4
SP4
SG4
SP4
SG4
4
X
0
X
X
3
3
LSBI
SG3 SG2 SG1 SG0
SG3 SG2 SG1 SG0
SP3
SP3
SP3
3
X
0
X
X
2
2
SP2
SP2
SP2
X
2
0
X
X
1
1
SP1
SP1
SP1
1
X
0
SP0
SP0
SP0
on
X
X
0
0
X
0
0