PXR40RM Datasheet, PDF (745/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

Enhanced Modular Input/Output Subsystem (eMIOS200)
23.2 External Signal Description
Refer to Section 2.2, External Signal Descriptions, Pin Multiplexing, and Attributes, and Section 2.3,
Detailed Signal Description, for detailed signal descriptions.
23.2.1 eMIOS[n]
eMIOS[n] are the eMIOS channel pins. When used as an input, an eMIOS[n] signal is available to be read
by the MCU through the UCIN bit in the EMIOS_CSR[n] register. When used as an output, the UCOUT
bit of the EMIOS_CSR[n] register reflects the state of the output pin.
NOTE
All eMIOS channels support both input and output functions. When the
eMIOS function is the primary function of a pin, then both the input and
output functions are supported. When the eMIOS function is not the primary
function of the pin, then only the output functions are supported.
23.2.2 Output Disable Input — eMIOS200 Output Disable Input Signal
Each output pin may be disabled by the assertion of a selected eMIOS channel FLAG bit from the
EMIOS_GFR register described in 23.3.2.2/23-9. The choice of FLAG is defined by the ODIS and
ODISSL bit fields of the EMIOS_CCR[n] described in section 23.3.2.7/23-12
Freescale Semiconductor
PXR40 Microcontroller Reference Manual, Rev. 1
23-5