MK30DN512ZVLK10 Freescale Semiconductor, MK30DN512ZVLK10 Datasheet - Page 448

• 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

Memory map/register definition
21.3.27 TCD Current Minor Loop Link, Major Loop Count (Channel
If TCDn_CITER[ELINK] is cleared, the TCDn_CITER register is defined as follows.
Addresses: 4000_8000h base + 1016h offset + (32d × n), where n = 0d to 15d
* Notes:
•
448
Reset
Read
Write
x = Undefined at reset.
Bit
Reserved
LINKCH
CITER
ELINK
14–13
12–9
Field
8–0
15
15
x*
Linking Disabled) (DMA_TCD_CITER_ELINKNO)
14
x*
Enable channel-to-channel linking on minor-loop complete
As the channel completes the minor loop, this flag enables linking to another channel, defined by the
LINKCH field. The link target channel initiates a channel service request via an internal mechanism that
sets the TCDn_CSR[START] bit of the specified channel.
If channel linking is disabled, the CITER value is extended to 15 bits in place of a link channel number. If
the major loop is exhausted, this link mechanism is suppressed in favor of the MAJORELINK channel
linking.
NOTE: This bit must be equal to the BITER[ELINK] bit. Otherwise, a configuration error is reported.
0
1
This read-only field is reserved and always has the value zero.
Link Channel Number
If channel-to-channel linking is enabled (ELINK = 1), then after the minor loop is exhausted, the eDMA
engine initiates a channel service request to the channel defined by these four bits by setting that
channel’s TCDn_CSR[START] bit.
Current Major Iteration Count
This 9-bit (ELINK = 1) or 15-bit (ELINK = 0) count represents the current major loop count for the channel.
It is decremented each time the minor loop is completed and updated in the transfer control descriptor
memory. After the major iteration count is exhausted, the channel performs a number of operations (e.g.,
final source and destination address calculations), optionally generating an interrupt to signal channel
completion before reloading the CITER field from the beginning iteration count (BITER) field.
NOTE: When the CITER field is initially loaded by software, it must be set to the same value as that
NOTE: If the channel is configured to execute a single service request, the initial values of BITER and
The channel-to-channel linking is disabled
The channel-to-channel linking is enabled
13
x*
DMA_TCDn_CITER_ELINKYES field descriptions
contained in the BITER field.
CITER should be 0x0001.
K30 Sub-Family Reference Manual, Rev. 6, Nov 2011
12
x*
11
x*
10
x*
x*
9
x*
8
Description
CITER
x*
7
x*
6
x*
5
x*
4
Freescale Semiconductor, Inc.
x*
3
x*
2
x*
1
x*
0