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參數(shù)資料
| 型號(hào)： | DSP1620 |
| 英文描述： | TVS 400W 6.0V BIDIRECT SMA |
| 中文描述： | 澄清，串行I /設(shè)備的DSP1620/27/28/29 O控制注冊(cè)說(shuō)明 |
| 文件頁(yè)數(shù)： | 80/114頁(yè) |
| 文件大小： | 804K |
| 代理商： | DSP1620 |
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Preliminary Data Sheet
February 1997
DSP1628 Digital Signal Processor
78
Lucent Technologies Inc.
7 Mask-Programmable Options
The DSP1628 contains a ROM that is mask-programmable. The selection of several programmable features is
made when a custom ROM is encoded. These features select the input clock options, the instruction/coefficient
memory map option, and the hardware emulation or ROM security option, as summarized in Table 63.
* 1628hds.v#
(# indicates the current version number) is the relocatable HDS object code. It uses approximately 140 words
and must reside in the first 4 Kwords of ROM.
crc16.v#is the cyclic redundancy check object code. It uses approximately 75 words and must reside in the first 4 Kwords
of ROM. See the DSP1600 Support Tools Manual or detailed information.
7.1 Input Clock Options
For all input options, the input clock CKI can run at some fraction of the internal clock frequency by setting the PLL
multiplication factors appropriately (see Section 4.13, Clock Synthesis). When the PLL is bypassed, the input clock
CKI frequency is the internal clock frequency.
7.2 Memory Map Options
The DSP1628 offers a DSP1628x16 or a DSP1628x08 where the difference is in the memory maps. The
DSP1628x16 contains 16 Kwords of internal RAM (DPRAM). The DSP1628x08 supports the use of only 8 Kwords
of DPRAM. See Section 4.4 Memory Maps and Wait-States for further description.
7.3 ROM Security Options
The DSP1600 hardware development system (HDS) provides on-chip in-circuit emulation and requires that the re-
locatable HDS code be linked to the application code. This code's object file is called 1628hds.v# where # is a
unique version identifier. Refer to the DSP1628-ST software tools release for more specific information. If on-chip
in-circuit emulation is desired, a nonsecure ROM must be chosen. If ROM security is desired with the DSP1628, the
HDS cannot be used. To provide testing of the internal ROM contents on a secure ROM device, a cyclic redundancy
check (CRC) program is called by and linked with the user's source code. The CRC code resides in the first
4 Kwords of ROM.
See the DSP1600 Support Tools Manualfor more detailed information.
Table 63. DSP1628 ROM Options
Features
Input Clock
Options
CMOS Level
Small Signal
DSP1628x16
DSP1628x08
Nonsecure
Comments
2.7 V
2.7 V
16 Kwords DPRAM
8 Kwords DPRAM
Specify and link
1628hds.v#
*,
allows emulation.
Memory Map
ROM Security
Secure
Specify and link
crc16.v#
,
no emulation capability.
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| DSP1627 | TVS 400W 6.5V BIDIRECT SMA |
| DSP1629 | TVS 400W 64V UNIDIRECT SMA |
| DSP16410C | TVS 400W 7.0V UNIDIRECT SMA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DSP16210 | 制造商:AGERE 制造商全稱:AGERE 功能描述:DSP16210 Digital Signal Processor |
| DSP1627 | 制造商:AGERE 制造商全稱:AGERE 功能描述:DSP1627 Digital Signal Processor |
| DSP1627F32K10IR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP|16-BIT|CMOS|QFP|100PIN|PLASTIC |
| DSP1627F32K10IT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP|16-BIT|CMOS|QFP|100PIN|PLASTIC |
| DSP1627F32K11I | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Digital Signal Processor |
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