Register Map; Gpio Interrupt Configuration Example - Texas Instruments Concerto F28M35 Series Technical Reference Manual

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General-Purpose Input/Output (GPIO)
Register
Desired
Interrupt
Event
Trigger
0=edge1=lev
GPIOIS
el
0=single
GPIOIBE
edge1=both
edges
0=Low level,
or falling
GPIOIEV
edge1=High
level, or
rising edge
0=masked1=
GPIOIM
not masked
(1)
X=Ignored (don't care bit)

4.1.5 Register Map

Table 4-5
lists the GPIO registers. Each GPIO port can be accessed through one of two bus apertures.
The legacy aperture, the Advanced Peripheral Bus (APB), is backwards-compatible with existing software.
The other aperture, the Advanced High-Performance Bus (AHB), offers the same register map but
provides better back-to-back access performance than the APB bus.
NOTE: The GPIO registers in this chapter are duplicated in each GPIO block; however, depending
on the block, all eight bits may not be connected to a GPIO pad. In those cases, writing to
unconnected bits has no effect, and reading unconnected bits returns no meaningful data.
The offset listed is a hexadecimal increment to the register's address, relative to that GPIO port's base
address:
GPIO Port A (APB): 0x4000.4000
GPIO Port A (AHB): 0x4005.8000
GPIO Port B (APB): 0x4000.5000
GPIO Port B (AHB): 0x4005.9000
GPIO Port C (APB): 0x4000.6000
GPIO Port C (AHB): 0x4005.A000
GPIO Port D (APB): 0x4000.7000
GPIO Port D (AHB): 0x4005.B000
GPIO Port E (APB): 0x4002.4000
GPIO Port E (AHB): 0x4005.C000
GPIO Port F (APB): 0x4002.5000
GPIO Port F (AHB): 0x4005.D000
GPIO Port G (APB): 0x4002.6000
GPIO Port G (AHB): 0x4005.E000
GPIO Port H (APB): 0x4002.7000
GPIO Port H (AHB): 0x4005.F000
GPIO Port J (APB): 0x4003.D000
GPIO Port J (AHB): 0x4006.0000
GPIO Port K (AHB): 0x4006.1000
346
General-Purpose Input/Output (GPIO)
Table 4-4. GPIO Interrupt Configuration Example
7
6
5
X
X
X
X
X
X
X
X
X
0
0
0
Copyright © 2012–2019, Texas Instruments Incorporated
(1)
Pin 2 Bit Value
4
3
2
X
X
0
X
X
0
X
X
1
0
0
1
SPRUH22I – April 2012 – Revised November 2019
www.ti.com
1
0
X
X
X
X
X
X
0
0
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