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TUSB3410 データシート(PDF) 21 Page - Texas Instruments

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部品番号 TUSB3410
部品情報  USB TO SERIAL PORT CONTROLLER
PDF  92 Pages
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

TUSB3410 データシート(HTML) 21 Page - Texas Instruments

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4–1
4 MCU Memory Map (Internal Operation)
Figure 4–1 illustrates the MCU memory map under boot and normal operation. For more information regarding the
integrated 8052, see the TUSBxxxx Microcontroller Reference Guide (SLLU044).
NOTE:
The internal 256 bytes of RAM are not shown, since they are assumed to be in the standard
8052 location (0000 to 00FF). The shaded areas represent the internal ROM/RAM.
When SDW bit = 0 (boot mode): The 10K ROM is mapped to address (0x0000–0x27FF) and is duplicated in location
(0x8000–0xA7FF) in code space. The internal 16K RAM is mapped to address range (0x0000–0x3FFF) in data
space. Buffers, MMR, and I/O are mapped to address range (0xF800–0xFFFF) in data space.
When SDW bit = 1 (normal mode): The 10K ROM is mapped to (0x8000–0xA7FF) in code space. The internal 166K
RAM is mapped to address range (0x0000–0x3FFFF) in code space. Buffers, MMR, and I/O are mapped to address
range (0xF800–0xFFFF) in data space.
Normal Mode (SDW = 1)
0000
CODE
XDATA
16K
Code RAM
Read Only
2K Data
MMR
10K Boot ROM
Boot Mode (SDW = 0)
CODE
XDATA
10K Boot ROM
2K Data
MMR
10K Boot ROM
(16K)
Read/Write
27FF
3FFF
8000
A7FF
F800
FF7F
FF80
FFFF
Figure 4–1. MCU Memory Map



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