MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 153

• 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

5.4.5 Interrupt Collector Status Register (HW_ICOLL_STAT)
Read only view into various internal states, including the Vector number of the current
interupt.
This register is used to test interrupt collector state machine and its associated request
holding register.
EXAMPLE
Address:
Re-
Freescale Semiconductor, Inc.
Reset
set
Bit
W
for vector 23 decimal, 17 hex
R
ADDRESS
VECTOR_
Bit
NUMBER
W
31
RSRVD1
RSRVD1
0
R
TABLE_
Field
31 2
Field
31 7
1 0
6 0
30
0
15
0
29
0
HW_ICOLL_STAT
28
0
14
0
This bitfield holds the upper 30 bits of the base address of the vector table.
Always write zeroes to this bitfield.
Always write zeroes to this bitfield.
Vector number of current interrupt. Multiply by 4 * HW_ICOLL_CTRL[VECTOR_PITCH] and add to vector
base address to obtain the value in HW_ICOLL_VECTOR.
27
0
if(HW_ICOLL_STAT_VECTOR_NUMBER_READ() == 0x00000017) ISR_vector_23(); //
26
0
13
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
0
24
0
12
0
23
0
8000_0000h base + 70h offset = 8000_0070h
HW_ICOLL_VBASE field descriptions
HW_ICOLL_STAT field descriptions
22
0
11
0
21
0
20
TABLE_ADDRESS[15:2]
RSRVD1
10
0
0
19
0
18
0
0
9
17
0
16
0
0
8
15
0
Description
Description
14
0
7
0
13
0
0
12
6
0
11
0
5
0
10
0
Chapter 5 Interrupt Collector (ICOLL)
0
9
4
0
0
8
0
7
0
3
1
6
VECTOR_NUMBER
1
5
0
2
1
4
3
1
RSRVD1
0
1
1
2
1
1
0
0
ISR
153
1
0