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DSP56857 bảng dữ liệu(PDF) 644 Page - Freescale Semiconductor, Inc

tên linh kiện DSP56857
Giải thích chi tiết về linh kiện  Digitial Signal Controller
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nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
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DSP56857 bảng dữ liệu(HTML) 644 Page - Freescale Semiconductor, Inc

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Application:
Date:
Programmer:
Sheet
Appendix B - Programmer’s Sheets, Rev. 4
Freescale Semiconductor
B-142
Preliminary
HI8
HI8 Command Vector Register (CVR)
Bits
Name
Description
7HC
Host Command
This bit is used by the host processor to handshake the execution of Host Command interrupts.
Normally, the host processor sets HC = 1 to request the Host Command interrupt from the core.
Setting the HC bit causes Host Command pending to be set in the Host Status Register.
6 - 0
HV
CVR Host Vector
These seven bits select the Host Command interrupt offset address in the vector table to be
used by the Host Command interrupt logic. When the Host Command interrupt is recognized by
the DSC interrupt control logic the offset address of the interrupt vector table taken is 2
× HVI0,
6. The Host can write HC and HV in the same write cycle.
6 of 10
HI8 Command
Vector Register
(CVR)
$1FFFD8 + $1
Bits
7
6
5
4
3
2
1
0
Read
HC
HV6
HV5
HV4
HV3
HV2
HV1
HV0
Write
Reset
00
000
0
0
0



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