Detailed Api Specification - Freescale Semiconductor DSP56800E User Manual

Cmd
GPIO_READ_DATA
GPIO_WRITE_DATA
GPIO_READ_INT_PENDING_REG
GPIO_GET_INT_PENDING_FLAG
GPIO_TEST_INT_PENDING
MC56F83xx ,MC56F801x, MC56F802x/3x
only:
GPIO_SETAS_PUSHPULL
MC56F83xx ,MC56F801x, MC56F802x/3x
only:
GPIO_SETAS_OPENDRAIN
GPIO_READ_RAW_DATA
MC56F80xx only:
GPIO_SET_HIGH_DRIVE_STRENGTH
MC56F80xx only:
GPIO_SET_LOW_DRIVE_STRENGTH
MC56F800x only:
GPIO_SET_LOW_PASS_FILTER_ENABLE
MC56F800x only:
GPIO_SET_LOW_PASS_FILTER_DISABLE
MC56F800x only:
GPIO_SET_LOW_SLEW_RATE_ENABLE
MC56F800x only:
GPIO_SET_LOW_SLEW_RATE_DISABLE
5.8.3

Detailed API Specification

The detailed functionality of all ioctl commands is explained in this section. The code examples
illustrate the ioctl commands usage.
FREESCALE SEMICONDUCTOR
Table 5-236. ioctl commands (Continued)
pParam
None
UWord16
None
BIT_0 | BIT_1 |
... | BIT_15
BIT_0 | BIT_1 |
... | BIT_15
BIT_0 | BIT_1 |
... | BIT_15
BIT_0 | BIT_1 |
... | BIT_15
NULL
BIT_0 | BIT_1 |
... | BIT_15
BIT_0 | BIT_1 |
... | BIT_15
BIT_0 | BIT_1 |
... | BIT_15
BIT_0 | BIT_1 |
... | BIT_15
BIT_0 | BIT_1 |
... | BIT_15
BIT_0 | BIT_1 |
... | BIT_15
Targeting 56F8xxx Platform
Return Description
UWord16 Reads from the selected GPIO
port.
None Writes to the selected GPIO
port.
UWord16 Reads GPIO Interrupt Pending
Register.
UWord16 Gets the selected GPIO inter-
rupt pending flag(s).
UWord16 Tests the selected GPIO inter-
rupt pending flag(s).
None Sets the output driver of the
selected GPIO pins to push-pull
mode.
None Sets the output driver of the
selected GPIO pins to open
drain mode.
UWord16 Reads the logic value of each
GPIO pin on the selected port.
None Sets the high strength of the
selected output driver.
None Sets the low strength of the
selected output driver.
None Enables input low pass filter
None Disables input low pass filter
None Enables slew rate on selected
GPIO pins
None Disables slew rate on selected
GPIO pins
5-311