Table 10-2. GPIO Pins and Alternate Functions (128TQFP) (continued)
Digital Function (GPIOPCTL PMCx Bit Field Encoding)
b
Analog
or
Special
Function
a
PinIO
1514131187654321
---------
T5CCP1
-
U0RITMPR071PM7
-----------
U1RTS-107PN0
-----------
U1CTS-108PN1
EPI0S29
---------
U2RTSU1DCD-109PN2
EPI0S30
---------
U2CTSU1DSR-110PN3
EPI0S34
--------
I2C2SDAU3RTSU1DTR-111PN4
EPI0S35
--------
I2C2SCLU3CTSU1RI-112PN5
SSI3XDAT2
----------
U6RxC2+118PP0
SSI3XDAT3
----------
U6TxC2-119PP1
EPI0S29USB0NXT
---------
U0DTR-103PP2
EPI0S30USB0DIR
---
RTCCLK
----
U0DCDU1CTS-104PP3
-
USB0D7
--------
U0DSRU3RTS-105PP4
-
USB0D6
--------
I2C2SCLU3CTS-106PP5
EPI0S20SSI3Clk
----------
-5PQ0
EPI0S21SSI3Fss
----------
-6PQ1
EPI0S22SSI3XDAT0
----------
-11PQ2
EPI0S23SSI3XDAT1
----------
-27PQ3
-----
DIVSCLK
-----
U1Rx-102PQ4
a. The TMPRn signals are digital signals enabled and configured by the Hibernation module. All other signals listed in this column are analog
signals.
b. The digital signals that are shaded gray are the power-on default values for the corresponding GPIO pin. Encodings 9, 10, and 12 are
not used on this device.
10.2 Pad Capabilities
There are two main types of pads provided on the device:
■ Fast GPIO pads: These pads provide variable, programmable drive strength and optimized
voltage output levels.
■ Slow GPIO pads: These pads provide 2-mA drive strength and are designed to be sensitive to
voltage inputs. The following GPIOs port pins are designed with Slow GPIO Pads:
– PJ1
Please refer to“Recommended GPIO Operating Characteristics” on page 1820 for details on the GPIO
operating conditions for these two different pad types.
Note: Port pins PL6 and PL7 operate as Fast GPIO pads, but have 4-mA drive capability only.
GPIO register controls for drive strength, slew rate and open drain have no effect on these
pins. The registers which have no effect are as follows: GPIODR2R, GPIODR4R,
GPIODR8R, GPIODR12R, GPIOSLR, and GPIOODR.
June 18, 2014746
Texas Instruments-Production Data
General-Purpose Input/Outputs (GPIOs)
To Next Page
Loading...
Need help?
General
