MK30DN512ZVLK10 Freescale Semiconductor, MK30DN512ZVLK10 Datasheet - Page 654

• Manufacturer Part Number: MK30DN512ZVLK10
• Description: ARM Microcontrollers - MCU KINETIS 512K SLCD
• Manufacturer: Freescale Semiconductor

Specifications of MK30DN512ZVLK10

• Core: ARM Cortex M4
• Processor Series: K30
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 512 KB
• Data Ram Size: 128 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.71 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: LQFP-80
• Mounting Style: SMD/SMT

Functional description
30.3.3.1 Types of transpose
The CRC module provides several types of transpose functions to flip the bits and/or
bytes (for both writing input data and reading the CRC result, separately using the
CTRL[TOT] or CTRL[TOTR] fields) according to the CRC calculation being used.
The following types of transpose functions are available for writing to and reading from
the CRC data register.
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1. CTRL[TOT] or CTRL[TOTR] is 00
2. CTRL[TOT] or CTRL[TOTR] is 01
3. CTRL[TOT] or CTRL[TOTR] is 10
4. CTRL[TOT] or CTRL[TOTR] is 11
No transposition occurs.
Bits in a byte are transposed, while bytes are not transposed.
reg[31:0] becomes {reg[24:31], reg[16:23], reg[8:15], reg[0:7]}
Both bits in bytes and bytes are transposed.
reg[31:0] becomes = {reg[0:7], reg[8:15],reg[16:23], reg[24:31]}
Bytes are transposed, but bits are not transposed.
reg[31:0] becomes {reg[7:0], reg[15:8], reg[23:16], reg[31:24]}
24
31
31
24
31
0
K30 Sub-Family Reference Manual, Rev. 6, Nov 2011
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23
Figure 30-5. Transpose type 01
Figure 30-6. Transpose type 10
16
23
8
15
15
8
31
0
0
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Freescale Semiconductor, Inc.
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