MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1375
MCIMX281AVM4B
Manufacturer Part Number
MCIMX281AVM4B
Description
IC MPU I.MX28 1.2 289MAPBGA
Manufacturer
Freescale Semiconductor
Series
i.MX28r
Datasheets
1.MCIMX283DVM4B.pdf
(2327 pages)
2.MCIMX283DVM4B.pdf
(20 pages)
3.MCIMX281AVM4B.pdf
(72 pages)
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
- Current page: 1375 of 2327
- Download datasheet (17Mb)
19.4.10 Entropy Register (HW_DIGCTL_ENTROPY)
The Entropy register is a read-only test value register.
EXAMPLE
Address:
Re-
Freescale Semiconductor, Inc.
set
Bit
W
R
CACHE_BIST_
DMA1_BIST_
DMA0_BIST_
ENET_BIST_
USB1_BIST_
USB0_BIST_
DCP_BIST_
CAN_BIST_
31
0
DONE
DONE
DONE
DONE
DONE
DONE
DONE
DONE
Field
30
7
6
5
4
3
2
1
0
0
29
0
HW_DIGCTL_ENTROPY
28
0
This read-only bit is a 1 if the DCP BIST test has completed.
This read-only bit is a 1 if the ENET BIST test has completed.
This read-only bit is a 1 if the USB1 BIST test has completed.
This read-only bit is a 1 if the USB0 BIST test has completed.
This read-only bit is a 1 if the DMA1 BIST test has completed.
This read-only bit is a 1 if the DMA0 BIST test has completed.
This read-only bit is a 1 if the CACHE BIST test has completed.
This read-only bit is a 1 if the CAN BIST test has completed.
27
0
HW_DIGCTL_BIST_STATUS field descriptions (continued)
while(HW_DIGCTL_STATUS.PSWITCH != 0)
{
}
HW_DIGCTL_WRITEONCE.BITS = rand(HW_DIGCTL_ENTROPY.VALUE);
26
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
//wait for pswitch to go away
25
0
24
0
23
0
22
0
21
8001_C000h base + 90h offset = 8001_C090h
0
20
0
19
0
18
0
17
0
VALUE
16
0
15
0
Description
Chapter 19 Digital Control (DIGCTL) and On-Chip RAM
14
0
13
0
12
0
11
0
10
0
0
9
0
8
0
7
0
6
0
5
0
4
3
0
0
2
0
1
1375
0
0
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