MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 814

• Manufacturer Part Number: MCIMX281AVM4B
• Description: IC MPU I.MX28 1.2 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX281AVM4B

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 454MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
• Peripherals: DMA, I²S, LCD, POR, PWM, WDT
• Program Memory Size: 128KB (32K x 32)
• Program Memory Type: Mask ROM
• Ram Size: 32K x 32
• Voltage - Supply (vcc/vdd): 1.25 V ~ 5.25 V
• Data Converters: A/D 17x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 289-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

Programmable Registers
Address:
Re-
9.4.60 PINCTRL Bank 2 Interrupt Select Register
The Bank 2 Interrupt Select register selects which of the bank 2 pins may be used as interrupt
sources.
HW_PINCTRL_PIN2IRQ2: 0x1020
HW_PINCTRL_PIN2IRQ2_SET: 0x1024
HW_PINCTRL_PIN2IRQ2_CLR: 0x1028
HW_PINCTRL_PIN2IRQ2_TOG: 0x102C
As described earlier in this chapter, any digital I/O pin can be used as an interrupt source.
This register selects which pins in bank 2 can be used to generate interrupts. If the pin is
selected in this register by setting its bit to 1, then detection of the correct level or edge on
the pin (as chosen by the HW_PINCTRL_IRQLEVEL2 and HW_PINCTRL_IRQPOL2
registers) will set the corresponding bit in the HW_PINCTRL_IRQSTAT2 register. If the
pin is additionally enabled in the HW_PINCTRL_IRQEN0 register, then the interrupt will
be propagated to the interrupt collector as interrupt GPIO2. For example, if this register
contains 0x00000014, then pins GPIO2[2] and GPIO2[4] can be used as interrupt pins, and
no other pins in bank 0 will cause bits to be set in the HW_PINCTRL_IRQSTAT2 register.
814
set
Bit
W
R
31
PIN2IRQ
0
Field
31 0
30
0
29
0
(HW_PINCTRL_PIN2IRQ2)
HW_PINCTRL_PIN2IRQ1
28
0
Each bit in this register corresponds to one of the 32 pins in bank 1:
0= Deselect the pin's interrupt functionality.
1= Select the pin to be used as an interrupt source.
27
0
26
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
0
24
0
HW_PINCTRL_PIN2IRQ1 field descriptions
23
0
22
0
21
0
8001_8000h base + 1010h offset = 8001_9010h
20
0
19
0
18
0
17
0
PIN2IRQ
16
0
15
0
Description
14
0
13
0
12
0
11
0
10
0
0
9
0
8
Freescale Semiconductor, Inc.
0
7
0
6
0
5
0
4
3
0
0
2
0
1
0
0