K60P100M100SF2RM Datasheet, PDF (482/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Memory map/register definition
DMA_TCDn_CSR field descriptions (continued)
Field
1
INTMAJOR
0 The half-point interrupt is disabled
1 The half-point interrupt is enabled
Description
Enable an interrupt when major iteration count completes
If this flag is set, the channel generates an interrupt request by setting the appropriate bit in the INT when
the current major iteration count reaches zero.
0
START
0 The end-of-major loop interrupt is disabled
1 The end-of-major loop interrupt is enabled
Channel Start
If this flag is set, the channel is requesting service. The eDMA hardware automatically clears this flag after
the channel begins execution.
0 The channel is not explicitly started
1 The channel is explicitly started via a software initiated service request
21.3.30 TCD Beginning Minor Loop Link, Major Loop Count (Channel
Linking Enabled) (DMA_TCD_BITER_ELINKYES)
If the TCDn_BITER[ELINK] bit is set, the TCDn_BITER register is defined as follows.
Addresses: 4000_8000h base + 101Eh offset + (32d × n), where n = 0d to 15d
Bit 15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
0
Write
LINKCH
BITER
Reset x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x*
* Notes:
• x = Undefined at reset.
Field
15
ELINK
DMA_TCDn_BITER_ELINKYES field descriptions
Description
Enables channel-to-channel linking on minor loop complete
As the channel completes the minor loop, this flag enables the linking to another channel, defined by
BITER[LINKCH]. 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 disables, the BITER value
extends 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: When the software loads the TCD, this field must be set equal to the corresponding CITER field.
Otherwise, a configuration error is reported. As the major iteration count is exhausted, the
contents of this field is reloaded into the CITER field.
Table continues on the next page...
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
482
Freescale Semiconductor, Inc.