Si1142-A10-GM Silicon Laboratories Inc, Si1142-A10-GM Datasheet - Page 19

• Manufacturer Part Number: Si1142-A10-GM
• Description: Proximity Sensors IC INTERFACE
• Manufacturer: Silicon Laboratories Inc

Specifications of Si1142-A10-GM

• Maximum Operating Temperature: + 85 C
• Supply Voltage: 3.3 V
• Supply Current: 5.6 mA to 360 mA
• Operating Supply Voltage: 1.8 V to 3.6 V
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Current Rating: 359 mA
• Voltage Rating: 4 V
• Sensing Distance: 1 m
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.2. Command Protocol
The I
writable I
Si1141/42/43-to-host communication.
Unlike the other host-writable I
from Standby mode to process the host request.
When a command is executed, the RESPONSE register is updated. Typically, when there is no error, the upper
four bits are zeroes. To allow command tracking, the lower four bits implement a 4-bit circular counter. In general, if
the upper nibble of the RESPONSE register is non-zero, this indicates an error or the need for special processing.
The PARAM_WR and PARAM_RD registers are additional mailbox registers.
In addition to the registers in the I
Response interface. These parameters are stored in the internal ram space. These parameters generally take
more I
PARAM_QUE
PARAM_AND 110 aaaaa
PARAM_SET
PARAM_OR
PS_FORCE
BUSADDR
Reserved
Reserved
RESET
COMMAND Register
Name
2
NOP
C map implements a bidirectional message box between the host and the Si1141/42/43 Sequencer. Host-
2
RY
C accesses to read and write. The Parameter RAM is described in "4.6. Parameter RAM" on page 48.
2
C registers facilitate host-to-Si1141/42/43 communication, while read-only I
100 aaaaa
101 aaaaa
000 00000
000 00001
000 00010
000 00100
000 00101
000 00011
111 aaaaa
Encoding
PARAM_W
R Register
2
dddd
dddd
dddd
dddd
dddd
dddd
C registers, the COMMAND register causes the internal sequencer to wake up
—
—
—
—
—
—
—
2
Table 5. Command Register Summary
C map, there are environmental parameters accessible through the Command/
PARAM_RD
nnnn nnnn
nnnn nnnn
nnnn nnnn
nnnn nnnn
Register
—
—
—
—
—
—
Rev. 1.1
RESPONSE Register
Error Code in
—
—
—
ü
ü
ü
ü
ü
ü
ü
Reads the parameter pointed to by
bitfield [4:0] and writes value to
PARAM_RD.
See Table 10 for parameters.
Sets parameter pointed by bitfield
[4:0] with value in PARAM_WR, and
writes value out to PARAM_RD. See
Table 10 for parameters.
Performs a bit-wise AND between
PARAM_WR and Parameter pointed
by bitfield [4:0], writes updated value
to PARAM_RD.
See Table 10 for parameters.
Performs a bit-wise OR of
PARAM_WR and parameter pointed
by bitfield [4:0], writes updated value
to PARAM_RD. See Table 10 for
parameters.
Forces a zero into the RESPONSE
register
Performs a software reset of the
firmware
Modifies I
Forces a single PS measurement
Si1141/42/43
2
C address
2
C registers are used for
Description
—
—
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