參數(shù)資料
型號: ADSP-2192M
廠商: Analog Devices, Inc.
元件分類: 數(shù)字信號處理
英文描述: DSP Microcomputer
中文描述: DSP微機
文件頁數(shù): 11/40頁
文件大小: 1307K
代理商: ADSP-2192M
–11–
REV. 0
ADSP-2192M
24-Bit PCI DSP Memory Map (BAR2)
The complete PCI address footprint for the ADSP-2192M DSP
Memory Spaces in 24-bit (BAR2) Mode is shown in
Table 8
.
Figure 3. PCI Addressing for 24-Bit and 16-Bit Memory Blocks in 24-Bit Access (BAR2) Mode
Figure 4. PCI Addressing for 24-Bit and 16-Bit Memory Blocks in 16-Bit Access (BAR3) Mode
UNUSED
UNUSED
BYTE3
BYTE0
BYTE1
BYTE2
16K
24-BIT BLOCK
16K
16-BIT BLOCK
PCI DWORD
PCI BYTE ADDRESS
DSP WORD ADDRESS
0x0 0000
0x0000
0x1 FFFC
0x1 0000
0x0 FFFC
0x3FFF
0x4000
0x7FFF
BYTE3 IS
ALWAYS
UNUSED
BYTE0 IS UNUSED
BY 16-BIT MEMORY
LOCATIONS
ALLOWED BYTE
ENABLES:
CBE
= 1100
CBE
= 0011
UNUSED
BYTE3
BYTE0
BYTE1
BYTE2
16K
24-BIT BLOCK
16K
16-BIT BLOCK
PCI DWORD
PCI BYTE ADDRESS
DSP WORD ADDRESS
0x0 0000
0x0000
0x0 FFFE
0x0 8000
0x0 7FFE
0x3FFF
0x4000
0x7FFF
ALL BYTES ARE USED.
ALLOWED BYTE
ENABLES:
CBE
= 1100
CBE
= 0011
CBE
= 0000
UNUSED
DATA WORD N + 1
DATA WORD N
DATA WORD N + 1
DATA WORD N
Table 8. 24-Bit PCI DSP Memory Map (BAR2 Mode)
1
Block
DSP P0 Data RAM
Block 0
Byte3
UNUSED
UNUSED
. . .
UNUSED
UNUSED
UNUSED
. . .
UNUSED
UNUSED
UNUSED
. . .
UNUSED
UNUSED
UNUSED
. . .
UNUSED
UNUSED
UNUSED
. . .
UNUSED
Byte2
D[15:8]
D[15:8]
. . .
D[15:8]
D[15:8]
D[15:8]
. . .
D[15:8]
D[15:8]
D[15:8]
. . .
D[15:8]
D[15:8]
D[15:8]
. . .
D[15:8]
D[23:16]
D[23:16]
. . .
D[23:16]
Byte1
D[7:0]
D[7:0]
. . .
D[7:0]
D[7:0]
D[7:0]
. . .
D[7:0]
D[7:0]
D[7:0]
. . .
D[7:0]
D[7:0]
D[7:0]
. . .
D[7:0]
D[15:8]
D[15:8]
. . .
D[15:8]
Byte0
UNUSED
UNUSED
. . .
UNUSED
UNUSED
UNUSED
. . .
UNUSED
UNUSED
UNUSED
. . .
UNUSED
UNUSED
UNUSED
. . .
UNUSED
D[7:0]
D[7:0]
. . .
D[7:0]
Offset
0x0000 0000
0x0000 0004
. . .
0x0000 FFFC
0x0001 0000
0x0001 0004
. . .
0x0001 FFFC
0x0002 0000
0x0002 0004
. . .
0x0002 FFFC
0x0003 0000
0x0003 0004
. . .
0x0003 FFFC
0x0004 0000
0x0004 0004
. . .
0x0004 FFFC
DSP P0 Data RAM
Block 1
DSP P0 Data RAM
Block 2
DSP P0 Data RAM
Block 3
DSP P0 Program RAM
Block
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