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DSP56857 Datasheet(PDF) 409 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) 409 Page - Freescale Semiconductor, Inc

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Register Descriptions
General Purpose Input/Output (GPIO), Rev. 4
Freescale Semiconductor
15-9
15.8 Register Descriptions
Base Addresses:
•
GPIOA_BASE = GPIOA_BASE = $1FFE60
•
GPIOB_BASE = GPIOB_BASE = $1FFE64
•
GPIOC_BASE = GPIOC_BASE = $1FFE68
•
GPIOD_BASE = GPIOD_BASE = $1FFE6C
•
GPIOE_BASE = GPIOE_BASE = $1FFE70
•
GPIOF_BASE = GPIOF_BASE = $1FFE74
•
GPIOG_BASE = GPIOG_BASE = $1FFE78
•
GPIOH_BASE = GPIOH_BASE = $1FFE7C
Table 15-9. GPIO H Memory Map (GPIOH_BASE = $1FFE7C)
Address Offset
Register Acronym
Register Name
Access Type
Chapter Location
Base + $0
GPIO_H_PER
Peripheral Enable Register
Read/Write
Section 15.8.8
Base + $1
GPIO_H_DDR
Data Direction Register
Read/Write
Section 15.8.16
Base + $2
GPIO_H_DR
Data Register
Read/Write
Section 15.8.24
Base + $3
GPIO_H_PUR
Pull-Up Enable Register
Read/Write
Section 15.8.32
Add.
Offset
Register Name
15
14
13
12
11
10
9876
54321
0
$0
PER
R
1
1
1
1
1
1
1
1
1
1
1
1
1
PE
W
$1
DDR
R
0
0
0
0
0
0
0
0
0
0
0
0
0
DD
W
$2
DR
R
0
0
0
0
0
0
0
0
0
0
0
0
0
DATA
W
$3
PUR
R
1
1
1
1
1
1
1
1
1
1
1
1
1
PUE
W
R
0
Read as 0
W
Reserved
Figure 15-9. GPIO H Register Map Summary



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