MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 892

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MCIMX281AVM4B

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

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
10.8.28 ClkCtrl Status (HW_CLKCTRL_STATUS)
The STATUS control register provides read only status of the CPU frequecy limits.
EXAMPLE
HW_CLKCTRL_STATUS_RD(BF_CLKCTRL_STATUS_CPU_LIMIT());
Address:
892
Reset
Reset
RESET_ENABLE
THERMAL_
THERMAL_
CPU_LIMIT
Bit
Bit
DEFAULT
W
W
RESET_
R
R
RSRVD
31 30
CHIP
Field
Field
29 0
DIG
3
2
1
0
CPU_LIMIT
31
15
0
0
HW_CLKCTRL_STATUS
30
14
0
0
Analog Reset Control. Setting this bit to a logic one will enable the thermal reset control logic.
Reserved.
Software reset. Setting this bit to a logic one will reset the ENTIRE chip, no exceptions. This bit will also be
reset after the full chip reset cycle completes.
Software reset. Setting this bit to a logic one will reset the digital sections of the chip. The DCDC and power
module will not be reset. This bit will also be reset after the reset cycle completes.
CPU Limiting. 00: full cpu frequency, 01: limit cpu frequency to 455 MHz, 10: limit cpu frequency to 411
MHz, 11: limit cpu frequency to 360 MHz
Always set to zero (0).
29
13
HW_CLKCTRL_RESET field descriptions (continued)
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
28
12
0
0
HW_CLKCTRL_STATUS field descriptions
27
11
0
0
8004_0000h base + 1F0h offset = 8004_01F0h
26
10
0
0
25
0
0
9
RSRVD[15:0]
24
0
0
8
Description
Description
RSRVD[29:16]
23
0
0
7
22
0
0
6
21
0
5
0
20
0
4
0
Freescale Semiconductor, Inc.
19
0
0
3
18
0
0
2
17
0
0
1
16
0
0
0

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