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DSP56857 Datasheet(PDF) 422 Page - Freescale Semiconductor, Inc

Part # DSP56857
Description  Digitial Signal Controller
PDF  662 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

DSP56857 Datasheet(HTML) 422 Page - Freescale Semiconductor, Inc

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Register Descriptions
5685X Digital Signal Controller User Manual, Rev. 4
15-22
Freescale Semiconductor
15.8.26 Port B Pull-Up Enable Register (GPIOB_PUER)
Figure 15-35. Port B Pull-Up Enable Register (GPIOB_PUER)
See Programmer’s Sheet on Appendix page B - 130
15.8.26.1 Pull-Up Enable (PUE)—Bits 15–0
These bits control whether pull-ups are enabled for inputs in either Normal or GPIO mode.
Pull ups are automatically disabled for outputs in both modes.
•
0 = Pull ups disabled for inputs
•
1 = Pull ups enabled for inputs (default)
15.8.27 Port C Pull-Up Enable Register (GPIOC_PUER)
Figure 15-36. Port C Pull-Up Enable Register (GPIOC_PUER)
See Programmer’s Sheet on Appendix page B - 131
15.8.27.1 Reserved—Bits 15–6
These bits are reserved or not implemented. They are read as 1 and cannot be modified by
writing.
15.8.27.2 Pull-Up Enable (PUE)—Bits 5–0
These bits control whether pull-ups are enabled for inputs in either Normal or GPIO mode.
Pull ups are automatically disabled for outputs in both modes.
•
0 = Pull ups disabled for inputs
•
1 = Pull ups enabled for inputs (default)
Base + $3
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
PUE
Write
Reset
111
111
11
1
1
1
1
1
1
1
1
Base + $3
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
PUE
Write
Reset
111
111
11
1
1
1
1
1
1
1
1



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