Table 12.2 General Purpose I/O Pin Alternate Function; Table 12.3 Gpio Alternate Function Pins - Renesas IDT 89HPES48H12G2 User Manual

IDT General Purpose I/O
Notes
PES48H12G2 User Manual
GPIO Pin Alternate Function 0
0
1
2
3
4
5
8

Table 12.2 General Purpose I/O Pin Alternate Function

Alternate function signals are described in Table 12.3.
Signal Type
GPE O
IOEXPINTN
PARTxPERSTN I/O
PxACTIVEN O
PxLINKUPN O
When configured as an alternate function in the GPIOFUNCx register, a pin behaves as the alternate
function signal selected by the GPIOAFSEL register. If the alternate function signal is an input, the GPIO
pin behaves as an input. If the alternate function signal is an output, the GPIO pin behaves as an output.
The value of the alternate function pin may be determined at any time by reading the corresponding
GPIODx register. When an alternate function input signal is not enabled on any GPIO (or I/O expander for
hot-plug signals), the alternate function signal is internally held in an inactive state. For example, not config-
uring PART0PERSTN as an alternate function on GPIO0 causes PART0PERSTN to be internally held high.
PART0PERSTN
PART1PERSTN
PART2PERSTN
PART3PERSTN
—
GPEN
IOEXPINTN
Name/Description
General Purpose Event. Hot-plug general purpose event output
I I/O Expander x Interrupt Input. I/O expander interrupt
Partition x Fundamental Reset. Assertion of this signal initiates a partition
fundamental reset in the corresponding partition.
Port x Link active status output.
Port x link up status output.

Table 12.3 GPIO Alternate Function Pins

12 - 2
Alternate Function 1
P0LINKUPN
P0ACTIVEN
April 5, 2013