參數(shù)資料
型號(hào)： UCD9501
廠商： Texas Instruments, Inc.
元件分類： 數(shù)字信號(hào)處理
英文描述： Digital Signal Processors
中文描述： 數(shù)字信號(hào)處理器
文件頁(yè)數(shù)： 34/134頁(yè)
文件大?。?/td> 1133K
代理商： UCD9501
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www.ti.com
3.2.7
M0, M1 SARAMs
3.2.8
L0, L1, H0 SARAMs
3.2.9
Boot ROM
TMS320F2809, TMS320F2808, TMS320F2806
TMS320F2802, TMS320F2801, UCD9501
TMS320C2802, TMS320C2801 Digital Signal Processors
SPRS230G–OCTOBER 2003–REVISED FEBRUARY 2006
All 280x devices contain these two blocks of single access memory, each 1K x 16 in size. The stack
pointer points to the beginning of block M1 on reset. The M0 and M1 blocks, like all other memory blocks
on C28x devices, are mapped to both program and data space. Hence, the user can use M0 and M1 to
execute code or for data variables. The partitioning is performed within the linker. The C28x device
presents a unified memory map to the programmer. This makes for easier programming in high-level
languages.
The F2809 and F2808 each contain an additional 16K x 16 of single-access RAM, divided into 3 blocks
(L0-4K, L1-4K, H0-8K). The F2806 contains an additional 8K x 16 of single-access RAM, divided into
2 blocks (L0-4K, L1-4K). The F2802, F2801/UCD9501, C2802, and C2801 each contain an additional
4K x 16 of single-access RAM (L0-4K). Each block can be independently accessed to minimize CPU
pipeline stalls. Each block is mapped to both program and data space.
The Boot ROM is factory-programmed with boot-loading software. Boot-mode signals are provided to tell
the bootloader software what boot mode to use on power up. The user can select to boot normally or to
download new software from an external connection or to select boot software that is programmed in the
internal Flash/ROM. The Boot ROM also contains standard tables, such as SIN/COS waveforms, for use
in math related algorithms.
Table 3-6. Boot Mode Selection
GPIO18
SPICLKA
SCITXDB
1
GPIO29
SCITXDA
MODE
DESCRIPTION
GPIO34
Boot to Flash/ROM
Jump to Flash/ROM address 0x3F 7FF6
You must have programmed a branch instruction here prior
to reset to redirect code execution as desired.
Load a data stream from SCI-A
Load from an external serial SPI EEPROM on SPI-A
Load data from an external EEPROM at address 0x50 on
the I
2
C bus
Call CAN_Boot to load from eCAN-A mailbox 1.
Jump to M0 SARAM address 0x00 0000.
Jump to OTP address 0x3D 7800
Load data from GPIO0 - GPIO15
1
1
SCI-A Boot
SPI-A Boot
I
2
C Boot
1
1
1
1
0
0
0
1
0
eCAN-A Boot
Boot to M0 SARAM
Boot to OTP
Parallel I/O Boot
0
0
0
0
1
1
0
0
1
0
1
0
Functional Overview
34
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UCE-1.5/20-D48N-C 功能描述:DC/DC轉(zhuǎn)換器 48Vin 1.5Vout 20A 30W Neg polarity RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
UCE-1.5/20-D48PB-C 功能描述:DC/DC轉(zhuǎn)換器 48Vin 1.5Vout 20A 30W W/Baseplate RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
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