Cinterion
®
EHS6 AT Command Set
19.7 AT^SSPI
EHS6_ATC_V03.001
15/12/3
Confidential / Released
Page 463 of 513
Parameter Description
Parameter returned by the
? read command.
Indicates whether or not the I²C or SPI channel is used. When the channel is open and the ME is in data mode,
the read command can only be used if one of the remaining interfaces is available.
[0]
Not connected (channel closed). All following parameters are the factory set-
tings ^SSPI: 0,0010,0000,0000.
1
Connected (channel open, ME in data mode). All following parameters are the
values currently used, for example ^SSPI: 1,0010,0000,0000.
Parameter
is a 16 bit word which contains four subparameters to control the follow-
ing functions:
For SPI only:
0000
Length of SPI word = 8 bits
For SPI only: Parameter
is a 16 bit word which contains four subparameters
to control the following functions:
<connectionState>
(num)
<basicConfiguration>
(num)
Subparameter
Bit
Hexadecimal
Selected function
Interface type
D15 - D12
0
1
I²C bus (default)
SPI device
Port
D11 - D8
0
Internal port
Data transfer rate
D7 - D4
0
1
0
1
2
3
4
5
I²C at 100 kbps
I²C at 400 kbps (default)
SPI at 100 kbps
SPI at 250 kbps
SPI at 500 kbps
SPI at 1.083 Mbps
SPI at 3.25 Mbps
SPI at 6.5 Mbps
Protocol
D3 - D0
0
ASCII (hex coding)
<wordLength>
(num)
<extendedSpiConfiguration>
(num)
Subparameter
Bit
Hexadecimal
Selected function
SPI mode
D15 - D12
0
1
2
3
Four different SPI modes. Phase and
polarity of all SPI modes are illustrated in
Section
.
Chip Select (CS) mode
D11 - D8
0
One Chip Select per Transfer Frame.
Arrangement of bytes
D7 - D4
0
Big endian
Bit sequence
(arrangement of bits on the SPI)
D3 - D0
0
MSB first