MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 1032

• 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
13.3.7 DCP Key Index (HW_DCP_KEY)
This register contains a pointer to the key location to be written.
The DCP module maintains a set of write-only keys that may be used by software. To write
a key, software must first write the desired key index/subword to this register and then write
the key values to the key registers (below). After each write to the key data register, the
SUBWORD field will increment to allow software to write the subsequent key to be written
without having to rewrite the key index.
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:
1032
Reset
Reset
0
Bit
Bit
W
W
R
R
ADDR
RSVD
Field
31 0
Field
31 8
31
15
0
0
HW_DCP_KEY
30
14
0
0
Context pointer address. Address should be located in system RAM and should be word-aligned for optimal
performance.
Reserved, always set to zero.
29
13
0
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
RSVD[15:8]
28
12
0
0
8002_8000h base + 60h offset = 8002_8060h
HW_DCP_CONTEXT field descriptions
HW_DCP_KEY field descriptions
27
11
0
0
// write key values (subword 0)
// write key values (subword 1)
// write key values (subword 2)
// write key values (subword 3)
26
10
0
0
25
0
0
9
RSVD[31:16]
24
0
0
8
Description
Description
RSVD_INDEX
23
0
0
7
22
0
0
6
21
0
5
0
INDEX
20
0
4
0
Freescale Semiconductor, Inc.
SUBWORD
19
0
0
3
RSVD_
18
0
0
2
SUBWORD
17
0
0
1
16
0
0
0