MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1023
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
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Freescale Semiconductor, Inc.
payload2[1]=0x44556677;
payload2[2]=0x8899aabb;
payload2[3]=0xccddeeff;
payload2[3]=0xaabbccdd;
// set up control packet
dcp1.next = dcp2;
dcp1.ctrl0.U = 0;
dcp1.ctrl0.B.CIPHER_ENCRYPT = 1; // encryption operation
dcp1.ctrl0.B.CIPHER_INIT = 1;
dcp1.ctrl0.B.HASH_INIT = 1;
dcp1.ctrl0.B.ENABLE_CIPHER = 1;
dcp1.ctrl0.B.ENABLE_HASH = 1;
dcp1.ctrl0.B.DECR_SEMAPHORE = 1; // decrement semaphore
dcp1.ctrl0.B.CHAIN = 1;
dcp1.ctrl1.U = 0;
dcp1.ctrl1.B.CIPHER_MODE = BV_DCP_PACKET2_CIPHER_MODE_CBC; //select CBC mode of operation
dcp1.ctrl1.B.HASH_SELECT = BV_DCP_PACKET2_HASH_SELECT_SHA1;
dcp1.ctrl1.B.KEY_SELECT
dcp1.src = srcbuffer0;
dcp1.dst = dstbuffer;
dcp1.buf_size = 512;
dcp1.payload = payload0;
dcp1.status = 0;
// set up control packet
dcp2.next = dcp3;
dcp2.ctrl0.U = 0;
dcp2.ctrl0.B.CIPHER_ENCRYPT = 1; // encryption operation
dcp2.ctrl0.B.ENABLE_CIPHER = 1;
dcp2.ctrl0.B.ENABLE_HASH = 1;
dcp2.ctrl0.B.DECR_SEMAPHORE = 1; // decrement semaphore
dcp2.ctrl0.B.CHAIN = 1;
dcp2.ctrl1.U = 0;
dcp2.ctrl1.B.CIPHER_MODE = BV_DCP_PACKET2_CIPHER_MODE_CBC; //select CBC mode of operation
dcp2.ctrl1.B.HASH_SELECT = BV_DCP_PACKET2_HASH_SELECT_SHA1;
dcp2.ctrl1.B.KEY_SELECT
dcp2.src = srcbuffer1;
dcp2.dst = dstbuffer+512;
dcp2.buf_size = 512;
dcp2.payload = NULL;
dcp2.status = 0;
// set up control packet
dcp3.next = dcp3;
dcp3.ctrl0.U = 0;
dcp3.ctrl0.B.HASH_TERM
dcp3.ctrl0.B.HASH_CHECK
dcp3.ctrl0.B.CIPHER_ENCRYPT = 1; // encryption operation
dcp3.ctrl0.B.ENABLE_CIPHER = 1;
dcp3.ctrl0.B.ENABLE_HASH = 1;
dcp3.ctrl0.B.DECR_SEMAPHORE = 1; // decrement semaphore
dcp3.ctrl0.B.INTERRUPT = 1;
dcp3.ctrl1.U = 0;
dcp3.ctrl1.B.CIPHER_MODE = BV_DCP_PACKET2_CIPHER_MODE_CBC; //select CBC mode of operation
dcp3.ctrl1.B.HASH_SELECT = BV_DCP_PACKET2_HASH_SELECT_SHA1;
dcp3.ctrl1.B.KEY_SELECT
dcp3.src = srcbuffer1;
dcp3.dst = dstbuffer+1024;
dcp3.buf_size = 512;
dcp3.payload = payload2;
dcp3.status = 0;
// Enable channel 0
HW_DCP_CHnCMDPTR_WR(0, dcp1);
HW_DCP_CHnSEMA_WR(0, 3);
// now wait for interrupt or poll
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
= 2;
= 2;
= 2;
= 1; // terminate hash block
= 1; // check hash against payload value
// point to packet 2
// clear ctrl0 field
// init CBC for this block (from payload)
// init hash this block
// enable cipher
// enable cipher
// chain to next packet
// clear ctrl1
// select key #2
// destination buffer
// 512 bytes
// clear status
// point to packet 2
// clear ctrl0 field
// enable cipher
// enable cipher
// chain to next packet
// clear ctrl1
// select key #2
// source buffer
// destination buffer
// 512 bytes
// no payload required
// clear status
// point to packet 2
// clear ctrl0 field
// enable cipher
// enable cipher
// interrupt on completion
// clear ctrl1
// select key #2
// source buffer
// destination buffer
// 512 bytes
// payload is hash check value
// clear status
// write packet address to pointer register
// increment semaphore by 3 (for 3 packets)
// source buffer
// holds key/CBC init
Chapter 13 Data Co-Processor (DCP)
// select SHA1 hash
// select SHA1 hash
// select SHA1 hash
1023
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