SCP1000 PCB3 VTI Technologies, SCP1000 PCB3 Datasheet - Page 20

• Manufacturer Part Number: SCP1000 PCB3
• Description: SENSOR I2C 30-120KPA PCB
• Manufacturer: VTI Technologies
• Series: SCP1000r

Specifications of SCP1000 PCB3

• Pressure Type: Absolute
• Operating Pressure: 4.35 ~ 17.40 PSI, 30 ~ 120 kPa
• Output: Digital
• Voltage - Supply: 2.4 V ~ 3.3 V
• Termination Style: Surface Mount
• Operating Temperature: -20°C ~ 70°C
• Package / Case: PCB Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 551-1044

3.3 Indirect Access Registers
VTI Technologies Oy
www.vti.fi
SPI address: 0x20
TWI address: 0x80
Register name: DATARD16, pressure data LSB or 8 bit data read from indirect register
If indirect register is read the content of the DATARD16 register is the indirect register content (bits
[7:0]). Otherwise pressure data LSB (bits [15:0]) can be read from DATARD16.
Bit level description for pressure data from registers DATARD8 and DATARD16 is presented in
Table 12 below. Pressure information is presented in integer format. See section 2.2.3 (Equation 1)
for more detailed information of converting the pressure data in to Pascal, [Pa].
Table 12. Bit level description of pressure data.
SPI address: 0x21
TWI address: 0x81
Register name: TEMPOUT, temperature in 2’s complement format
Bit level description for temperature data from register TEMPOUT is presented in Table 13 below.
See section 2.2.3 (Equation 2) for more detailed information of converting the temperature data in
to [°C].
Table 13. Bit level description of1 temperature data.
s = sign bit
x = not used bit
SCP1000 indirect access register contents and bit definitions are described in this section. Indirect
access registers can be accessed through the serial interface using the OPERATION, DATAWR,
ADDPTR and DATARD16 registers (see section 3.3.1).
Address: 0x00
Register name: CFG, configuration register
~[Pa]
Data
bit #
Bit#
~[°C]
Data
bit #
Bit#
15:14
15:0
15:8
13:0
Bits
Bits
Bits
7:0
7:0
64K
P18
B2
B15
x
DATARD8
32K
P17
B1
Mode
Mode
Mode
B14
RW
x
R
R
R
16K
P16
B0
B13
s
s
8192
B15
P15
0000h
0000h
Value
Value
Value
Initial
Initial
Initial
0x05
00h
204.8
B12
T12
4096
B14
P14
102.4
2048
B11
T11
B13
P13
PRES_LSB
1024
TEMP
Name
DATA
Name
Name
P12
B12
51.2
B10
T10
Doc.Nr. 8260800.08
Subject to changes
B11
512
P11
25.6
B9
T9
B10
P10
256
12.8
Description
Pressure data LSB (16 bits)
Reserved
8 bit data from indirect register
Description
Reserved
Temperature output data
Description, INDIRECT ACCESS
Low power mode resolution selection:
0x05 – high resolution selected (17 bits)
0x0D – low resolution selected (15 bits)
other combinations are reserved.
TEMPOUT
B8
T8
128
B9
P9
6.4
B7
T7
DATARD16
B8
P8
64
3.2
B6
T6
B7
P7
32
B6
16
P6
1.6
B5
T5
B5
P5
8
0.8
B4
T4
B4
P4
4
0.4
B3
T3
B3
P3
2
B2
0.2
T2
B2
P2
1
0.1
B1
T1
SCP1000 Series
0.5
B1
P1
0.05
0.25
B0
T0
B0
P0
Rev.0.08
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