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USB97C100QFP 数据表(PDF) 13 Page - SMSC Corporation

部件名 USB97C100QFP
功能描述  Multi-Endpoint USB Peripheral Controller
PDF  64 Pages
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制造商  SMSC [SMSC Corporation]
网页  http://www.smsc.com
标志 SMSC - SMSC Corporation

USB97C100QFP 数据表(HTML) 13 Page - SMSC Corporation

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SMSC DS – USB97C100
Page 13
Rev. 01/03/2001
MCU Memory Map
The 64K memory map is as follows from the 8051's viewpoint:
Code Space
Table 3 - MCU Code Memory Map
8051 ADDRESS
CODE SPACE
ACCESS
0xC000-0xFFFF
Movable 16k page
External FLASH
0x8000-0xBFFF
Fixed 16k page
External FLASH
0x7000-0x7FFF
Movable 16k FLASH page 1 of 64 16k pages in
External FLASH
0x6000-0x6FFF
External FLASH (0x00000-0xFFFFF) selected by
External FLASH
0x5000-0x5FFF
MEM_BANK Register Default: 0x04000-
External FLASH
0x4000-0x4FFF
0x07FFFFLASH
External FLASH
0x3000-0x3FFF
Fixed 16k FLASH Page
External FLASH
0x2000-0x2FFF
0x00000-0x03FFF FLASH
External FLASH
0x1000-0x1FFF
External FLASH
0x0000-0x0FFF
External FLASH
Data Space
Table 4 - MCU Data Memory Map
8051 ADDRESS
DATA SPACE
ACCESS
0xC000-0xFFFF
Movable 16k page
Default : 0x04000-0x07FFF FLASH
External FLASH
0x8000-0xBFFF
Fixed 16k page
0x00000-0x03FFF FLASH
External FLASH
0x7000-0x7FFF
0x7F80-0x7F9F SIE Reg
0x7F70-0x7F7F ISA Reg
0x7F50-0x7F6F MMU Reg
0x7F20-0x7F2F Power Reg
0x7F10-0x7F1F Configuration Reg
0x7F00-0x7F0F Runtime Reg
Note 1.
Internal
0x6000-0x6FFF
0x6000
MMU Data Register
Internal
0x5000-0x5FFF
0x5000-0x5FFF
ISA MEMORY Window
ISA
0x4000-0x4FFF
0x4000-0x40FF
ISA I/O Window
ISA
0x3000-0x3FFF
Not used
0x2000-0x2FFF
Not used
0x1000-0x1FFF
Not used
0x0000-0x00FF
Registers and SFR’s
Internal
Note 1: The MCU, MMU, and SIE block registers are external to the 8051, but internal to the USB97C100. These
addresses will appear on the FLASH bus, but the read and write strobes will be inhibited.
ISADMA Memory Map
The Internal Memory buffer is virtualized into the 8237's 64K address map as 32 independent 1k blocks. After the
MMU has allocated a given packet size for a specific PNR, the MMU will make that packet appear to the 8237 as a
contiguous block of data in the address ranges depicted in table 5.
Table 5 - ISADMA Memory Map
8237 MEMORY ADDRESS
DESCRIPTION
0x8000-0xFFFF
32 blocks of 1k Window to Packet
0x0000-0x7FFF
32K Window to External ISA RAM



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