Datasheet

The default reset value for the GPIOCR register is 0x0000.00FF for all GPIO pins, with the
exception of the five JTAG/SWD pins (PB7 and PC[3:0]). To ensure that the JTAG port
is not accidentally programmed as a GPIO, these five pins default to non-committable.
Because of this, the default reset value of GPIOCR for GPIO Port B is 0x0000.007F while
the default reset value of GPIOCR for Port C is 0x0000.00F0.
Table 8-8. GPIO Register Map
See
page
DescriptionResetTypeNameOffset
302GPIO Data0x0000.0000R/WGPIODATA0x000
303GPIO Direction0x0000.0000R/WGPIODIR0x400
304GPIO Interrupt Sense0x0000.0000R/WGPIOIS0x404
305GPIO Interrupt Both Edges0x0000.0000R/WGPIOIBE0x408
306GPIO Interrupt Event0x0000.0000R/WGPIOIEV0x40C
307GPIO Interrupt Mask0x0000.0000R/WGPIOIM0x410
308GPIO Raw Interrupt Status0x0000.0000ROGPIORIS0x414
309GPIO Masked Interrupt Status0x0000.0000ROGPIOMIS0x418
310GPIO Interrupt Clear0x0000.0000W1CGPIOICR0x41C
311GPIO Alternate Function Select-R/WGPIOAFSEL0x420
313GPIO 2-mA Drive Select0x0000.00FFR/WGPIODR2R0x500
314GPIO 4-mA Drive Select0x0000.0000R/WGPIODR4R0x504
315GPIO 8-mA Drive Select0x0000.0000R/WGPIODR8R0x508
316GPIO Open Drain Select0x0000.0000R/WGPIOODR0x50C
317GPIO Pull-Up Select-R/WGPIOPUR0x510
318GPIO Pull-Down Select0x0000.0000R/WGPIOPDR0x514
319GPIO Slew Rate Control Select0x0000.0000R/WGPIOSLR0x518
320GPIO Digital Enable-R/WGPIODEN0x51C
321GPIO Lock0x0000.0001R/WGPIOLOCK0x520
322GPIO Commit--GPIOCR0x524
324GPIO Peripheral Identification 40x0000.0000ROGPIOPeriphID40xFD0
325GPIO Peripheral Identification 50x0000.0000ROGPIOPeriphID50xFD4
326GPIO Peripheral Identification 60x0000.0000ROGPIOPeriphID60xFD8
327GPIO Peripheral Identification 70x0000.0000ROGPIOPeriphID70xFDC
328GPIO Peripheral Identification 00x0000.0061ROGPIOPeriphID00xFE0
329GPIO Peripheral Identification 10x0000.0000ROGPIOPeriphID10xFE4
330GPIO Peripheral Identification 20x0000.0018ROGPIOPeriphID20xFE8
331GPIO Peripheral Identification 30x0000.0001ROGPIOPeriphID30xFEC
June 18, 2012300
Texas Instruments-Production Data
General-Purpose Input/Outputs (GPIOs)
NRND: Not recommended for new designs.