Gpio Input X-Bar - Texas Instruments TMS320F2837 D Series Workshop Manual And Lab Manual

F28x7x GPIO Control & Data Registers

GPIO Input X-Bar

GPIO0
GPIOx
CPU.PIE
The Input X-BAR is used to route external GPIO signals into the device. It has access to every
GPIO pin, where each signal can be routed to any or multiple destinations which include the
ADCs, eCAPs, ePWMs, Output X-BAR, and external interrupts. This provides additional flexibility
TMS320F2837xD Microcontroller Workshop - System Initialization
GpioCtrlRegs.register / GpioDataRegs.register (lab file: Gpio.c)
Register
GPxCTRL
GPxQSEL1
GPxQSEL2
GPxMUX1
GPxMUX2
GPxDIR
GPxPUD
GPxINV
GPxGSEL1
GPxGSEL2
GPxCSEL1
GPxCSEL2
GPxCSEL3
GPxCSEL4
GPxDAT
GPxSET
GPxCLEAR
GPxTOGGLE
Where x = A, B, C, D, E, or F
F28x7x GPIO Input X-Bar
Asynchronous
● ●
Synchronous
Input X-Bar
● ●
● ●
Sync. + Qual.
XINT5
XINT4
XINT3
CLA
XINT2
XINT1
ADC
ADCEXTSOC
Output X-Bar
Description
GPIO x Control Register
GPIO x Qualifier Select 1 Register
GPIO x Qualifier Select 2 Register
GPIO x Mux1 Register
GPIO x Mux2 Register
GPIO x Direction Register
GPIO x Pull-Up Disable Register
GPIO x Input Polarity Invert Registers
GPIO x Peripheral Group Mux
GPIO x Peripheral Group Mux
GPIO x Core Select Register
GPIO x Core Select Register
GPIO x Core Select Register
GPIO x Core Select Register
GPIO x Data Register
GPIO x Data Set Register
GPIO x Data Clear Register
GPIO x Data Toggle Register
INPUT7
INPUT8
INPUT9
INPUT10
INPUT11
INPUT12
ePWM
X-Bar
EXTSYNCIN1
EXTSYNCIN2
General Purpose Digital I/O
eCAP1
eCAP2
eCAP3
eCAP4
eCAP5
eCAP6
TZ1, TRIP1
TZ2, TRIP2
TZ3, TRIP3
TRIP4
TRIP5
ePWM
TRIP7
TRIP8
Modules
TRIP9
TRIP10
TRIP11
TRIP12
TRIP6
ePWM and eCAP
Sync Chain
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