Memory Controller Programming Model
MSC8113 Reference Manual, Rev. 0
Freescale Semiconductor
12-99
Table 12-32 describes ORx fields in SDRAM mode. For details see Section 12.2.14, SDRAM
Configuration Examples, on page 12-29.
Table 12-32. ORx Bit Descriptions (SDRAM Mode)
Name
Reset
Description
Settings
SDAM
0–11
—
SDRAM Address Mask
Masks corresponding BRx bits. Masking address
bits independently allows SDRAM devices of
different size address ranges to be used. Clearing
bits masks the corresponding address bit. Setting
bits causes the corresponding address bits to be
compared with the address lines. Address mask bits
can be set or cleared in any order, allowing a
resource to reside in more than one area of the
address map. SDAM can be read or written at any
time.
Note:
If PSDMR[PBI]=0, the maximum size of
the memory bank should not exceed 128
MB.
000000000000 = 4 GB
100000000000 = 2 GB
110000000000 = 1 GB
111000000000 = 512 MB
111100000000 = 256 MB
111110000000 = 128 MB
111111000000 = 64 MB
111111100000 = 32 MB
111111110000 = 16 MB
111111111000 = 8 MB
111111111100 = 4 MB
111111111110 = 2 MB
111111111111 = 1 MB
LSDAM
12–16
—
Lower SDRAM Address Mask
Note:
Reset LSDAM to 0x0 to implement a
minimum size of 1 MB when using
SDRAM.
SDRAM Page Information
BPD
17–18
—
Banks Per Device
Sets the number of internal banks per SDRAM
device. Note that for 128-Mb SDRAMs, BPD must
be 00 or 01.
00
2 internal banks per device.
01
4 internal banks per device.
10
8 internal banks per device (not
valid for 128-Mb SDRAMs).
11
Reserved.
ROWST
19–22
—
Row Start Address Bit
Sets the demultiplexed row start address bit. The
value of ROWST depends on PSDMR[PBI].
For PSDMR[PBI] = 0:
0010 A7
0100 A8
0110 A9
1000 A10
1010 A11
1100 A12
1110 A13
Other values are reserved.
For PSDMR[PBI] = 1:
0000 A0
0001 A1
...
1100 A12
1101–1111 Reserved
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 ...