MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 1033

• 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

13.3.8 DCP Key Data (HW_DCP_KEYDATA)
This register provides write access to the key/key subword specified by the Key Index
Register.
Writing this location updates the selected subword for the key located at the index specified
by the Key Index Register. A write also triggers the SUBWORD field of the KEY register
to increment to the next higher word in the key.
EXAMPLE
// write key 0 to 0x00112233_44556677_8899aabb_ccddeeff
HW_DCP_KEY_WR(BF_DCP_KEY_INDEX(0) | BF_DCP_KEY_SUBWORD(0)); // set key index to key 0, subword
HW_DCP_KEYDATA_WR(0xccddeeff);
HW_DCP_KEYDATA_WR(0x8899aabb);
HW_DCP_KEYDATA_WR(0x44556677);
HW_DCP_KEYDATA_WR(0x00112233);
Address:
Re-
Freescale Semiconductor, Inc.
set
Bit
W
0
R
RSVD_INDEX
SUBWORD
SUBWORD
31
0
RSVD_
INDEX
DATA
Field
Field
31 0
7 6
5 4
3 2
1 0
30
0
29
0
HW_DCP_KEYDATA
28
0
Reserved, always set to zero.
Key index pointer. Valid indices are 0-[number_keys].
Reserved, always set to zero.
Key subword pointer. Valid indices are 0-3. After each write to the key data register, this field will increment.
Word 0 data for key. This is the least-significant word.
27
0
26
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
25
0
HW_DCP_KEY field descriptions (continued)
24
0
23
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HW_DCP_KEYDATA field descriptions
8002_8000h base + 70h offset = 8002_8070h
22
0
21
// write key values (subword 0)
// write key values (subword 1)
// write key values (subword 2)
// write key values (subword 3)
0
20
0
19
0
18
0
17
0
16
DATA
0
15
0
Description
Description
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13
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12
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11
0
10
0
Chapter 13 Data Co-Processor (DCP)
0
9
0
8
0
7
0
6
0
5
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4
3
0
0
2
0
1
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