MK30DN512ZVLK10 Freescale Semiconductor, MK30DN512ZVLK10 Datasheet - Page 456

• 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
The modules associated with the data transfer (address path, data path, and control)
sequence through the required source reads and destination writes to perform the actual
data movement. The source reads are initiated and the fetched data is temporarily stored
in the data path block until it is gated onto the internal bus during the destination write.
This source read/destination write processing continues until the minor byte count has
transferred.
After the minor byte count has moved, the final phase of the basic data flow is performed.
In this segment, the address path logic performs the required updates to certain fields in
the appropriate TCD, e.g., SADDR, DADDR, CITER. If the major iteration count is
exhausted, additional operations are performed. These include the final address
adjustments and reloading of the BITER field into the CITER. Assertion of an optional
interrupt request also occurs at this time, as does a possible fetch of a new TCD from
memory using the scatter/gather address pointer included in the descriptor (if scatter/
gather is enabled). The updates to the TCD memory and the assertion of an interrupt
request are shown in the following diagram.
456
eDMA
Address
eDMA Engine
Read Data
Write Data
Data Path
K30 Sub-Family Reference Manual, Rev. 6, Nov 2011
Figure 21-290. eDMA operation, part 2
Address Path
Program Model/
Channel Arbitration
eDMA Peripheral
Request
Transfer
Control
Descriptor (TCD)
64
Control
eDMA Done
Freescale Semiconductor, Inc.
Read Data
Write Address
Write Data
0
1
2
n-1