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DSP56857 датащи(PDF) 190 Page - Freescale Semiconductor, Inc

номер детали DSP56857
подробное описание детали  Digitial Signal Controller
PDF  662 Pages
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производитель  FREESCALE [Freescale Semiconductor, Inc]
домашняя страница  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

DSP56857 датащи(HTML) 190 Page - Freescale Semiconductor, Inc

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Register Descriptions (ITCN_BASE = $1FFF20)
5685X Digital Signal Controller User Manual, Rev. 4
8-12
Freescale Semiconductor
8.7.4 Interrupt Priority Register 3 (IPR3)
Figure 8-6. Interrupt Priority Register 3 (IPR3)
See Programmer’s Sheet on Appendix page B - 25
8.7.4.1 ESSI0 Transmit Data Interrupt Priority Level
(ESSI0_TD IPL)—Bits 15–14
This bit field is used to set the interrupt priority levels for certain peripheral IRQs. These IRQs
are limited to priorities zero through two and are disabled by default.
•
00 = IRQ disabled (default)
•
01 = IRQ is priority level 0
•
10 = IRQ is priority level 1
•
11 = IRQ is priority level 2
8.7.4.2 ESSI0 Transmit Data with Exception Status Interrupt Priority Level
(ESSI0_TDES IPL)—Bits 13–12
This bit field is used to set the interrupt priority levels for certain peripheral IRQs. These IRQs
are limited to priorities zero through two and are disabled by default.
•
00 = IRQ disabled (default)
•
01 = IRQ is priority level 0
•
10 = IRQ is priority level 1
•
11 = IRQ is priority level 2
8.7.4.3 ESSI0 Receive Last Slot Interrupt Priority Level
(ESSI0_RLS IPL)—Bits 11–10
This bit field is used to set the interrupt priority levels for certain peripheral IRQs. These IRQs
are limited to priorities zero through two and are disabled by default.
•
00 = IRQ disabled (default)
•
01 = IRQ is priority level 0
•
10 = IRQ is priority level 1
•
11 = IRQ is priority level 2
Base + $3
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
ESS0_TD
IPL
ESS0_TDES
IPL
ESS0_RLS
IPL
ESS0_RD
IPL
ESS0_RDE
S IPL
DMA5 IPL
DMA4 IPL
DMA3 IPL
Write
Reset
0
00
000
00
00
000
00
0



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