MSC8144E Reference Manual, Rev. 3
17-28
Freescale
Semiconductor
RapidIO Interface Dedicated DMA Controller
STFLOWLVL
27–26
0
RapidIO Transaction Flow Level
Selects a priority level for the transaction flow.
Note:
The value of this bit only applies to the external
RapidIO interface in bypass mode (SBPATMU = 1).
00 Lowest priority transaction
flow.
01 Medium priority transaction
flow.
10 High priority transaction flow.
11 Reserved.
SPCIORDER
24
0
Select PCI Ordering
When set, selects PCI ordering rules, which elevates write
priority one level above reads.
Note:
This bit is ignored unless SBPATMU is set (1).
0
PCI ordering not used.
1
PCI ordering selected.
SSME
24
0
Source Stride Mode Enable
Enables/disables source stride mode. When enabled, you
must set the required stride size and distance in the Source
Stride Register (SSR) for the specified channel.
Note:
This bit is ignored in basic mode (MR[EFE] is cleared
(0).
0
Stride mode disabled.
1
Stride mode enabled.
STRANSINT
23–20
0
DMA Source Transaction Interface
After transferring the last block of data in the last link
descriptor, if MR[EOLSIE] is set, then this bit is set and an
interrupt is generated.
Note:
This bit is ignored unless SBPATMU is set (1) and
the transaction is to the RapidIO interface.
1100
RapidIO interface.
1111
Local access memory.
All other values are reserved.
SREADTTYPE
19–16
0
DMA Source Transaction Type
Specifies the source transaction type.
Note:
Writing a reserved value to this field causes a
programming error to be detected and indicated in
SR[PE] for the specified channel.
RapidIO Interface in ATMU
Bypass mode:
0100
NREAD.
0111
Maintenance read.
All other values reserved.
Local Address space (even in
non-ATMU bypass mode):
0100
Read, do not snoop local
processor.
0101
Read, snoop local
processor.
0111
Read, unlock L2 cache
line.
All other values reserved.
—
15–10
0
Reserved. Write to zero for future compatibility.
ESAD
9–0
0
Extended Source Address
The value depends on the mode:
• Internal RapidIO transactions: Bits 9–4 are reserved and
bits 3–0 represent the most significant 4 bits of the 36-bit
source address.
• RapidIO interface: Bits 9–2 represent the target ID and bits
1–0 represent the two most significant bits of the RapidIO
address (33–32).
Note:
This field must be cleared (0) in non-bypass mode.
Table 17-11. SATR Field Descriptions (Continued)
Bits
Reset
Description
Setting
Summary of Contents for MSC8144E
Page 1: ...MSC8144E Reference Manual Quad Core Media Signal Processor MSC8144ERM Rev 3 July 2009 ...
Page 48: ...MSC8144E Reference Manual Rev 3 xlviii Freescale Semiconductor ...
Page 86: ...MSC8144E Reference Manual Rev 3 1 38 Freescale Semiconductor Overview ...
Page 168: ...MSC8144E Reference Manual Rev 3 3 60 Freescale Semiconductor External Signals ...
Page 242: ...MSC8144E Reference Manual Rev 3 5 26 Freescale Semiconductor Reset ...
Page 314: ...MSC8144E Reference Manual Rev 3 8 24 Freescale Semiconductor General Configuration Registers ...
Page 414: ...MSC8144E Reference Manual Rev 3 10 14 Freescale Semiconductor MSC8144E SC3400 DSP Subsystem ...
Page 452: ...MSC8144E Reference Manual Rev 3 11 38 Freescale Semiconductor Internal Memory Subsystem ...
Page 520: ...MSC8144E Reference Manual Rev 3 12 68 Freescale Semiconductor DDR SDRAM Memory Controller ...
Page 1070: ...MSC8144E Reference Manual Rev 3 21 28 Freescale Semiconductor Timers ...