SIU Programming Model
MSC8113 Reference Manual, Rev. 0
Freescale Semiconductor
4-13
PPC_ACR defines the arbiter modes and parked master on the system bus.
ISPS
27
Internal Space Port Size
Defines the port size of the MSC8113 internal space
region as seen by external masters. Setting ISPS enables
a 32-bit master to access the MSC8113 internal space.
The initial value is selected by the Hard Reset
Configuration Word (HRCW) ISPS bit. See Section 5.6.1
for details.
Note: When the ISPS bit is set, an external master can
only access the MSC8113 internal space using 32-bit
single accesses.
0
MSC8113 acts as a 64-bit slave to external
masters access to its internal space.
1
MSC8113 acts as a 32-bit slave to external
masters access to its internal space.
—
28–31
Reserved. Write to zero for future compatibility.
PPC_ACR
System Bus Arbiter Configuration Register
Bit
0
1
2
3
4
5
6
7
—
DBGD
EARB
PRKM
Type
R/W
Reset
0
0
0
(EARB)
0
0
1
0
Boot
0
0
0
(EARB)
0
1
0
1
Table 4-4. PPC_ACR Bit Descriptions
Name
Reset
Description
Settings
—
0–1
00
Reserved. Write to zero for future compatibility.
DBGD
2
0
Data Bus Grant Delay
Specifies the minimum number of data
tenure wait states for system bus
master-initiated data operations. This is the
minimum delay between TS and DBG. See
Section 13.2.4.1, Data Bus Arbitration.
0
DBG is asserted with TS if the data bus is free.
1
DBG is asserted one cycle after TS if the data
bus is not busy.
EARB
3
Set by
HRCW
External Arbitration
See Section 13.2.4.1, Data Bus Arbitration.
This bit reset value is determined on power
on reset by the Hard Reset Configuration
Word (HRCW). See Section 5.6.1, Hard
Reset Configuration Word.
0
Internal arbitration is performed.
1
External arbitration is assumed.
Table 4-3. BCR Bit Descriptions (Continued)
Name
Description
Settings
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 ...