MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1405

• 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

Address:
Re-
19.4.48 AHB Layer 3 Performance Metric for Stalled Bus Cycles Register
Used for AHB bus utilization measurements, the AHB Performance Metric for Stalled Bus
Cycles Register counts the number of stalled AHB cycles.
This counter increments on a data-phase of the AHB in which the HREADY signal is low,
indicating a stalled data transfer.
EXAMPLE
NumberStalledCycles = HW_DIGCTL_L3_AHB_DATA_STALLED_COUNT_RD();
Address:
Re-
Freescale Semiconductor, Inc.
set
set
Bit
Bit
W
W
R
R
31
31
0
0
COUNT
COUNT
Field
31 0
Field
31 0
30
30
0
0
29
29
0
0
HW_DIGCTL_L3_AHB_ACTIVE_CYCLES
8001_C3D0h
HW_DIGCTL_L3_AHB_DATA_STALLED
8001_C3E0h
(HW_DIGCTL_L3_AHB_DATA_STALLED)
28
28
0
0
This field contains the count of AHB bus cycles during which a master was active on the AHB Layer 3.
This field counts the number of AHB cycles in which a master was stalled.
27
27
0
0
HW_DIGCTL_L3_AHB_ACTIVE_CYCLES field descriptions
HW_DIGCTL_L3_AHB_DATA_STALLED field descriptions
26
26
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
25
0
0
24
24
0
0
23
23
0
0
22
22
0
0
21
21
0
0
20
20
0
0
19
19
0
0
18
18
0
0
17
17
8001_C000h base + 3E0h offset =
0
0
8001_C000h base + 3D0h offset =
COUNT
COUNT
16
16
0
0
15
15
0
0
Description
Description
Chapter 19 Digital Control (DIGCTL) and On-Chip RAM
14
14
0
0
13
13
0
0
12
12
0
0
11
11
0
0
10
10
0
0
0
0
9
9
0
0
8
8
0
0
7
7
0
0
6
6
0
0
5
5
0
0
4
4
3
0
3
0
0
0
2
2
0
0
1
1
1405
0
0
0
0