MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1377

• 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-
19.4.13 Digital Control Debug Read Test Register (HW_DIGCTL_DBGRD)
The Digital Control Debug Read Test Register is a read-only test value register.
This register is used for debugging purposes.
EXAMPLE
Address:
Re-
19.4.14 Digital Control Debug Register (HW_DIGCTL_DBG)
The Digital Control Debug Register is a read-only test value register.
Freescale Semiconductor, Inc.
set
set
Bit
Bit
W
W
R
R
COMPLEMENT
31
31
0
0
VALUE
Field
31 0
Field
31 0
30
30
0
1
ElapsedTime = StartTime - EndTime;
debug_value = HW_DIGCTL_DBGRD_RD();
29
29
0
1
HW_DIGCTL_MICROSECONDS 8001_C000h base + C0h offset = 8001_C0C0h
HW_DIGCTL_DBGRD
28
28
0
1
This register maintains a 32-bit counter that increments at a 1-microsecond rate. The 1-MHz clock driving
this counter is derived from the 24.0-MHz crystal oscillator. The count value is not preserved over
power-downs. The 32-bit value wraps in less than two hours.
This read-only bit field always reads back the one's complement of the value in HW_DIGCTL_DBG.
27
27
0
1
26
26
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
25
0
HW_DIGCTL_MICROSECONDS field descriptions
0
24
24
0
0
HW_DIGCTL_DBGRD field descriptions
23
23
0
1
22
22
0
0
8001_C000h base + D0h offset = 8001_C0D0h
21
21
0
0
20
20
0
1
19
19
0
1
18
18
0
0
COMPLEMENT
17
17
0
1
VALUE
16
16
0
0
15
15
// WARNING, handle rollover in real software
0
1
Description
Description
Chapter 19 Digital Control (DIGCTL) and On-Chip RAM
14
14
0
0
13
13
0
1
12
12
0
1
11
11
0
1
10
10
0
1
0
0
9
9
0
0
8
8
0
1
7
7
0
1
6
6
0
0
5
5
0
1
4
4
3
0
3
1
0
1
2
2
0
1
1
1
1377
0
0
0
0