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MSC8113 Reference Manual, Rev. 0
16-40
Freescale Semiconductor
Direct Memory Access (DMA) Controller
BD_ATTR
Buffer Attributes Parameter
Bit
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
INTRPT CYC CONT
—
NO_INC
BP
—
NBUS
NBD
Type
R/W
Reset
Undefined
Bit
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
—
TSZ
—
FLS
RD
—
TC
—
GBL
Type
R/W
Reset
Undefined
Table 16-10. BD_ATTR Bit Descriptions
Name
Reset
Description
Settings
INTRPT
0
Undefined
Interrupt
Indicates whether to issue an interrupt when
size reaches zero.
0
Do not issue interrupt.
1
Issue interrupt when size reaches zero.
CYC
1
Undefined
Cyclic Address
Indicates the behavior of BD_ADDR in
continuous buffer mode when BD_SIZE
reaches zero. For details, see Section
16.2.4.2, Cyclic Buffer, on page 16-22.
0
Sequential address. BD_ADDR is
incremented.
1
Cyclic address. BD_ADDR is restored to its
original value by decrementing BD_BSIZE
from BD_ADDR.
CONT
2
Undefined
Continuous Buffer Mode
Indicates whether the buffer is to be closed
when BD_SIZE reaches zero.
0
Buffer closes when BD_SIZE reaches zero.
1
Buffer continues operating when BD_SIZE
reaches zero.
—
3
Undefined
Reserved. Write to zero for future compatibility.
NO_INC
4
Undefined
Increments Address
Indicates the behavior of the buffer address.
0
Increment address after request is
serviced.
1
Do not increment address after request is
serviced.
BP
5–6
Undefined
Bus Priority
Indicates the bus mastership request to be
initiated with this channel. For details, see the
description of the System Bus Arbiter
Configuration Register (PPC_ACR) on
page 4-13 and the PPC_ALRL System Bus
Arbitration-Level Register (PPC_ALRL) on
page 4-15.
00 Arbitrate for bus mastership with DMA low
priority request (bus requestor number 12).
01 Arbitrate for bus mastership with DMA
middle priority request (bus requestor
number 11).
10 Arbitrate for bus mastership with DMA high
priority request (bus requestor 10).
11 Reserved.
—
7–8
Undefined
Reserved. Write to zero for future compatibility.
Summary of Contents for MSC8113
Page 1: ...MSC8113 Reference Manual Tri Core 16 Bit Digital Signal Processor MSC8113RM Rev 0 May 2008 ...
Page 20: ...MSC8113 Reference Manual Rev 0 xx Freescale Semiconductor Contents ...
Page 28: ...MSC8113 Reference Manual Rev 0 xxviii Freescale Semiconductor ...
Page 56: ...MSC8113 Reference Manual Rev 0 1 28 Freescale Semiconductor MSC8113 Overview ...
Page 76: ...MSC8113 Reference Manual Rev 0 2 20 Freescale Semiconductor SC140 Core Overview ...
Page 134: ...MSC8113 Reference Manual Rev 0 4 30 Freescale Semiconductor System Interface Unit SIU ...
Page 168: ...MSC8113 Reference Manual Rev 0 6 18 Freescale Semiconductor Boot Program ...
Page 180: ...MSC8113 Reference Manual Rev 0 7 12 Freescale Semiconductor Clocks ...
Page 260: ...MSC8113 Reference Manual Rev 0 8 80 Freescale Semiconductor Memory Map ...
Page 300: ...MSC8113 Reference Manual Rev 0 9 40 Freescale Semiconductor Extended Core ...
Page 304: ...MSC8113 Reference Manual Rev 0 10 4 Freescale Semiconductor MQBus and M2 Memory ...
Page 308: ...MSC8113 Reference Manual Rev 0 11 4 Freescale Semiconductor SQBus ...
Page 590: ...MSC8113 Reference Manual Rev 0 17 46 Freescale Semiconductor Interrupt Processing ...
Page 614: ...MSC8113 Reference Manual Rev 0 18 24 Freescale Semiconductor Debugging ...
Page 622: ...MSC8113 Reference Manual Rev 0 19 8 Freescale Semiconductor Internal Peripheral Bus IPBus ...
Page 724: ...MSC8113 Reference Manual Rev 0 21 32 Freescale Semiconductor UART ...
Page 920: ...MSC8113 Reference Manual Rev 0 25 150 Freescale Semiconductor Ethernet Controller ...
Page 1171: ...MSC8113 Reference Manual Rev 0 Freescale Semiconductor C 61 EF wait_rts P 01077FFC 9F rts 71 ...
Page 1172: ...MSC8113 Reference Manual Rev 0 C 62 Freescale Semiconductor MSC8113 Boot Code ...
Page 1202: ...MSC8113 Reference Manual Rev 0 Index 30 Freescale Semiconductor Index ...