LM3S310 Luminary Micro, Inc, LM3S310 Datasheet - Page 104

• Manufacturer Part Number: LM3S310
• Description: Lm3s310 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

General-Purpose Input/Outputs (GPIOs)
8.1
Figure 8-1. GPIO Module Block Diagram
8.2
104
PA0
PA1
PA2
PA3
PA4
PA5
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
Block Diagram
Functional Description
Important:
Each GPIO port is a separate hardware instantiation of the same physical block (see Figure 8-2).
The LM3S310 microcontroller contains five ports and thus five of these physical GPIO blocks.
U0Rx
U0Tx
SSIClk
SSIFss
PWM2
PWM3
C0-
C1-
C0+
SSIRx
SSITx
All GPIO pins are inputs by default (GPIODIR=0 and GPIOAFSEL=0), with the
exception of the five JTAG pins (PB7 and PC[3:0]. The JTAG pins default to their
JTAG functionality (GPIOAFSEL=1). Asserting a Power-On-Reset (POR) or an
external reset (RST) puts both groups of pins back to their default state.
Comparators
Analog
UART0
PWM1
SSI
JTAG
GPIO Port C
C2o/C2+
C1o/C1+
C0o
C2-
Preliminary
CCP5
CCP2
CCP1
Fault
UART1
PWM2
Timer2
Timer1
Timer0
PWM0
PWM4
PWM5
PWM0
PWM1
CCP4
CCP3
CCP0
U1Rx
U1Tx
July 5, 2006
PE0
PE1
PE2
PE3
PE4
PE5
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7