MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 1366

• Manufacturer Part Number: MCIMX286CVM4B
• Description: IC MPU I.MX286 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX286CVM4B

• 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: Compliant

Programmable Registers
19.4.3 Free-Running HCLK Counter Register
The Free-Running HCLK Counter Register is available for performance metrics. This
counter increments once per HCLK rising edge.
HW_DIGCTL_HCLKCOUNT: 0x020
HW_DIGCTL_HCLKCOUNT_SET: 0x024
HW_DIGCTL_HCLKCOUNT_CLR: 0x028
HW_DIGCTL_HCLKCOUNT_TOG: 0x02C
EXAMPLE
Address:
Re-
1366
set
PACKAGE_TYPE
Bit
W
R
JTAG_IN_USE
WRITTEN
31
0
COUNT
RSVD0
Field
23 5
Field
31 0
3 1
30
4
0
0
Duration
StartTime = HW_DIGCTL_HCLKCOUNT;
// Do something you want timed here
EndTime = HW_DIGCTL_HCLKCOUNT;
29
0
(HW_DIGCTL_HCLKCOUNT)
HW_DIGCTL_HCLKCOUNT
28
0
Reserved.
This read-only bit is a 1 if JTAG debugger usage has been detected.
This read-only bit field returns the pin count and package type. 000=289BGA, 001-111=Reserved.
Set to 1 by any successful write to the HW_DIGCTL_WRITEONCE register.
This counter counts up from reset using HCLK. The count is valid for HCLK frequencies greater than 2 MHz.
27
0
26
0
= EndTime - StartTime; // make sure to handle rollover in a real application
HW_DIGCTL_STATUS field descriptions (continued)
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
0
HW_DIGCTL_HCLKCOUNT field descriptions
24
0
23
0
22
0
21
0
8001_C000h base + 20h offset = 8001_C020h
20
0
19
0
18
0
17
0
COUNT
16
0
15
0
Description
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