Descriptions
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Description of the S400 switches
S400
Switch
Signal
Position
Connects to
Function
1
SQI_SIO2
OFF
Internal pull-up
These switches configure the console mode
interface. For details, see table
Settings for
selecting console mode interface
(table
below).
ON
GND via 4.7 kΩ
2
SQI_SIO1
OFF
Internal pull-up
ON
GND via 4.7 kΩ
3
SQI_SIO0
OFF
Internal pull-up
ON
GND via 4.7 kΩ
4
Not used
-
-
-
5
RDY
OFF
Internal pull-up
Disables console mode
ON
GND via 1 kΩ
Enables console mode
(currently only UART)
6
RUN
OFF
Internal pull-up
Disables alternative boot mode
ON
GND via 1 kΩ
Enables alternative boot mode which starts
the maintenance firmware (if maintenance
firmware is available in the internal FLASH)
Table 4: S400 for configuring console mode and alternative boot mode
Console mode Chip interface
Switch 1 (SQI_SIO2)
Switch 2 (SQI_SIO1)
Switch 3 (SQI_SIO0)
Default, 7
UART and Ethernet
Off
(internal pull-up)
Off
(internal pull-up)
Off
(internal pull-up)
Reserved, 6
Reserved
Off
(internal pull-up)
Off
(internal pull-up)
On
(external pull-down)
Reserved, 5
Reserved
Off
(internal pull-up)
On
(external pull-down)
Off
(internal pull-up)
4
UART and 8-bit DPM
Off
(internal pull-up)
On
(external pull-down)
On
(external pull-down)
3
UART and 16-bit DPM On
(external pull-down)
Off
(internal pull-up)
Off
(internal pull-up)
2
UART and SPM0
On
(external pull-down)
Off
(internal pull-up)
On
(external pull-down)
1
UART and SPM1
On
(external pull-down)
On
(external pull-down)
Off
(internal pull-up)
0
UART
On
(external pull-down)
On
(external pull-down)
On
(external pull-down)
Table 5: Settings for selecting console mode interface
NXHX 90-MC | Device description
DOC200602HW01EN | Revision 1 | English | 2021-02 | Released | Public
© Hilscher 2021
