ASC7531AM10 Ver la hoja de datos (PDF) - Unspecified
Número de pieza
componentes Descripción
Fabricante
ASC7531AM10 Datasheet PDF : 18 Pages
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aSC7531A / aSC7531B
Voltage
5.0 V
4.992 V
1V
0.0 V
-1 V
-4.992 V
-5.0 V
2’s complement representation
0001 0100 0000 0000
0001 0011 1111 1000
0000 0100 0000 0000
0000 0000 0000 0000
1111 1100 0000 0000
1110 1100 0000 1001
1110 1100 0000 0000
Table 3. Voltage Representation
Actual aSC7531 reports are only positive in sign and 13-bits
or 7.8mV in resolution. The sign bit will always be 0 since the
measured voltages are only positive values. Below the
integer bits, the fractional voltage reported by the aSC7531
are bits 9 through 3, with LSB = 7.8mV. Bits 2 through 0 are
always zero. The aSC7531 cannot measure voltages greater
than 16V.
Sign Integer Voltage 0 to 31V
Fractional Voltage LSB = 1/128V
15 14 13 12 11 10 ● 9 8 7 6 5 4 3
Figure 3. Voltage Reading
Always Zero
210
SST Interface
Multi Client Mode
Sensors operate in multi-client mode for read bit timing. Reference the SST Specification Version 1.0 for details.
SST Device Commands
GetDIB() Command (0xF7)
Read the Device Identifier Block (DIB). The read length of the command is either 8 or 16 bytes. 8 bytes is the minimum number of
bytes populated by a fixed address discoverable client.
Write Data Length:
Read Data Length:
Command Code:
0x01
0x08/0x10
0xF7
Note: Un-shaded table entries are created by the host. Shaded entries are the response bytes from the aSC7531 to the host.
# Bits
Host Sending
Hex Value
# Bits
aSC7531 Sending
Hex Value
8
Target Address
0x48
8
Write Length
0x01
8
Read Length
0x10
8
GetDIB Cmd
0xF7
8
FCS
0xDC
8
DIB Byte 1
(data)
8
…
(data)
8
DIB Byte 15
(data)
8
DIB Byte 16
(data)
8
FCS
(data dependent)
Figure 4. GetDIB() Command (16-byte read length)
© Andigilog, Inc. 2006
-6-
www.andigilog.com
December 2006 - 70A05012
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