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DSP56857 데이터시트(PDF) 410 Page - Freescale Semiconductor, Inc

부품명 DSP56857
상세설명  Digitial Signal Controller
PDF  662 Pages
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제조업체  FREESCALE [Freescale Semiconductor, Inc]
홈페이지  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

DSP56857 데이터시트(HTML) 410 Page - Freescale Semiconductor, Inc

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Register Descriptions
5685X Digital Signal Controller User Manual, Rev. 4
15-10
Freescale Semiconductor
15.8.1 Port A Peripheral Enable Register (GPIOA_PER)
Figure 15-10. Port A Peripheral Enable Register (GPIOA_PER)
See Programmer’s Sheet on Appendix page B - 105
15.8.1.1 Reserved—Bits 15–4
These bits are reserved or not implemented. They are read as 1 and cannot be modified by
writing.
15.8.1.2 Peripheral Enable (PE)—Bits 3–0
These bits control whether a given pin is in either Normal or GPIO mode.
•
0 = GPIO mode; pin operation is controlled by GPIO registers
•
1 = Normal mode; pin operation is controlled by the EMI module
15.8.2 Port B Peripheral Enable Register (GPIOB_PER)
Figure 15-11. Port B Peripheral Enable Register (GPIOB_PER)
See Programmer’s Sheet on Appendix page B - 106
15.8.2.1 Peripheral Enable (PE)—Bits 15–0
These bits control whether a given pin is in either Normal or GPIO mode.
•
0 = GPIO mode; pin operation is controlled by GPIO registers
•
1 = Normal mode; pin operation is controlled by the Host Interface Eight module
Base + $0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
1
1
1
1
1
1
1
1
1
1
1
1
PE
Write
Reset
111
111
11
1
1
1
1
1
1
1
1
Base + $0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
PE
Write
Reset
111
111
11
1
1
1
1
1
1
1
1



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