參數(shù)資料
型號(hào)： ADSP-2192
廠商： Analog Devices, Inc.
元件分類： 數(shù)字信號(hào)處理
英文描述： DSP Microcomputer
中文描述： DSP微機(jī)
文件頁數(shù)： 10/40頁
文件大?。?/td> 1307K
代理商： ADSP-2192
ADSP-2192M
–10–
REV. 0
PCI Memory Map
The ADSP-2192M On-Chip Memory is mapped to the PCI
Address Space. Because some ADSP-2192M Memory Blocks
are 24 bits wide (Program Memory) while others are 16 bits
(Data Memory), two different footprints are available in PCI
Address Space. These footprints are available to each PCI
function by accessing different PCI Base Address Registers
(BAR). BAR2 supports 24-bit “Unpacked” Memory Access.
BAR3 supports 16-bit “Packed” Memory Access.
In 24-bit (BAR2) Mode, each 32 bits (four Consecutive PCI
Byte Address Locations, which make up one PCI Data word)
correspond to a single ADSP-2192M Memory Location. BAR2
Mode is typically used for Program Memory Access. Byte3 is
always unused. Bytes[2:0] are used for 24-bit Memory Locations.
As shown in
Figure 3
, Bytes[2:1] are used for 16-bit Memory
Locations.
In 16-bit (BAR3) Mode (
Figure 4
), each 32-bit (four Consecu-
tive PCI Byte Address Locations) PCI Data Word corresponds
to two ADSP-2192M Memory Locations. Bytes[3:2] contain
one 16-bit Data Word, Bytes[1:0] contain a second 16-bit Data
Word. BAR3 Mode is typically used for Data Memory Access.
Only the 16 MSBs of a Data Word are accessed in 24-bit Blocks;
the 8 LSBs are ignored.
Table 7. PCI Configuration Space 0, 1, and 2
Address
Name
Reset
Comments
0x01–0x00
0x03–0x02
0x05–0x04
Vendor ID
Config 0 Device ID
Config 1 Device ID
Config 2 Device ID
Command Register
0x11D4
0x2192
0x219A
0x219E
0x0
Writable from the DSP during initialization
Writable from the DSP during initialization
Writable from the DSP during initialization
Writable from the DSP during initialization
Bus Master, Memory Space Capable, I/O Space
Capable
Bits enabled: Capabilities List, Fast B2B,
Medium Decode
Writable from the DSP during initialization
Writable from the DSP during initialization
Read Only
Multifunction bit set
Unimplemented
Register Access for all ADSP-2192M Registers,
Prefetchable Memory
24-bit DSP Memory Access
16-bit DSP Memory Access
I/O access for control registers and DSP memory
Unimplemented
Unimplemented
CIS RAM Pointer - Function 0 (Read Only)
CIS RAM Pointer - Function 1 (Read Only)
CIS RAM Pointer - Function 2 (Read Only)
Writable from the DSP during initialization
Writable from the DSP during initialization
Writable from the DSP during initialization
Writable from the DSP during initialization
Unimplemented
Read Only
Uses
INTA
Pin
Read Only
Read Only
Power Management Capability Identifier
Read Only
Writable from the DSP during initialization
Bits 15 and 8 initialized only on Power-up
Unimplemented
Unimplemented
0x07–0x06
Status Register
0x0
0x08
0x0B–0x09
0x0C
0x0D
0x0E
0x0F
0x13–0x10
Revision ID
Class Code
Cache Line Size
Latency Timer
Header Type
BIST
Base Address 1
0x0
0x48000
0x0
0x0
0x80
0x0
0x08
0x17–0x14
0x1B–0x18
0x1F–0x1C
0x23–0x20
0x27–0x24
0x2B–0x28
0x2D–0x2C
0x2F–0x2E
0x33–0x30
0x34
0x3C
0x3D
0x3E
0x3F
0x40
0x41
0x43–0x42
0x45–0x44
0x46
0x47
Base Address2
Base Address3
Base Address4
Base Address5
Base Address6
Config 0 CardBus CIS Pointer
Config 1 CardBus CIS Pointer
Config 2 CardBus CIS Pointer
Subsystem Vendor ID
Config 0 Subsystem Device ID
Config 1 Subsystem Device ID
Config 2 Subsystem Device ID
Expansion ROM Base Address
Capabilities Pointer
Interrupt Line
Interrupt Pin
Min_Gnt
Max_Lat
Capability ID
Next_Cap_Ptr
Power Management Capabilities
Power Management Control/Status
Power Management Bridge
Power Management Data
0x08
0x08
0x01
0x0
0x0
0x1FF03
0x1FE03
0x1FD03
0x11D4
0x2192
0x219A
0x219E
0x0
0x40
0x0
0x1
0x1
0x4
0x1
0x0
0x6C22
0x0
0x0
0x0
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