cjmcu,75x-gpio-header
Vendor: Changjiang Intelligent Technology Co., Ltd.
Description
GPIO pins exposed on CJMCU SC16IS75x breakout board headers.
The SC16IS75x breakout board layout provides a wraparound header on
two opposite edges of the board and can be divided into three sections.
Firstly, up to the host controller the serial bus configuration,
communication and chip control, secondly the UART interface to the
outside, and thirdly the GPIO interface down to other I/O components.
Proceeding clockwise on SC16IS750 breakout board:
* A 11-pin header. 5 pins on this header are exposed by this binding.
* A 11-pin header. 3 pins on this header are exposed by this binding.
Proceeding clockwise on SC16IS752 breakout board:
* A 2x8-pin header. 8 pins on this header are exposed by this binding.
* A 10-pin header. 0 pins on this header are exposed by this binding.
This binding provides a nexus mapping for 8 pins where parent pins 0
through 7 correspond as depicted below:
SC16IS750 SC16IS752
.-----------------------. .-----------------------------.
- |o I2C/nSPI GND o| - | __ |
- |o A0/CS _ nRESET o| - | .-´ |- --. |
- |o A1/SI _|| ||_ RX o| - - |o VCC | |- .---´ v|
- |o NC/SO ||_|| TX o| - - |o GND `-.__|- GP7|TXA o o| 7 -
- |o SCL/SCK CTS o| - - |o nRESET GP6|RXA o o| 6 -
- |o SDA/NC _____ RTS o| - - |o A0/CS _ GP5|RTSA o o| 5 -
- |o nIRQ | | IO7 o| 7 - |o A1/SI -||_||- GP4|CTSA o o| 4 -
0 |o IO0 | 750 | IO6 o| 6 - |o NC/SO ___ GP3|TXB o o| 3 -
1 |o IO1 |_____| IO5 o| 5 - |o nIRQ | | GP2|RXB o o| 2 -
2 |o IO2 ____ IO4 o| 4 - |o I2C/nSPI | 7 | GP1|RTSB o o| 1 -
- |o VCC |____| IO3 o| 3 - |o SCL/SCLK | 5 | GP0|CTSB o o| 0 -
`-----------------------´ - |o SDA/NC | 2 | ---+ .^ |
| |___| `--´ |
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`-----------------------------´
Properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
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This property is required. |
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Number of items to expect in a GPIO specifier
This property is required. |
Deprecated properties not inherited from the base binding file.
(None)
Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “cjmcu,75x-gpio-header” compatible.
Name |
Type |
Details |
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Property to identify that a device can be used as wake up source.
When this property is provided a specific flag is set into the
device that tells the system that the device is capable of
wake up the system.
Wake up capable devices are disabled (interruptions will not wake up
the system) by default but they can be enabled at runtime if necessary.
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Power domain the device belongs to.
The device will be notified when the power domain it belongs to is either
suspended or resumed.
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Automatically configure the device for runtime power management after the
init function runs.
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List of power states that will disable this device power.
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indicates the operational status of a device
Legal values: See Important properties for more information. |
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compatible strings
This property is required. See Important properties for more information. |
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register space
See Important properties for more information. |
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name of each register space
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interrupts for device
See Important properties for more information. |
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extended interrupt specifier for device
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name of each interrupt
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phandle to interrupt controller node
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Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
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Clock gate information
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name of each clock
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number of address cells in reg property
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number of size cells in reg property
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DMA channels specifiers
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Provided names of DMA channel specifiers
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IO channels specifiers
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Provided names of IO channel specifiers
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mailbox / IPM channels specifiers
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Provided names of mailbox / IPM channel specifiers
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Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
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