Enhanced Synchronous Serial Interface (ESSI)
GPIO Signals and Registers
MOTOROLA
DSP56309UM/D 7-45
Note:
Either a hardware RESET signal or a software RESET instruction clears all
PRR bits.
shows the port signal configurations.
7.6.3
Port Data Register (PDR)
The read/write, 24-bit PDR is used to read or write data to and from the ESSI GPIO
signals. The PD[5:0] bits are used to read or write data from and to the corresponding
port signals if they are configured as GPIO signals. If a port signal [i] is configured as a
GPIO input, then the corresponding PD[i] bit reflects the value present on this signal. If a
port signal [i] is configured as a GPIO output, then the value written into the
corresponding PD[i] bit is reflected on the this signal.
Table 7-5
Port Control Register and Port Direction Register Bits
PC[i]
PDC[i]
Port Signal[i] Function
1
X
ESSI
0
0
GPIO input
0
1
GPIO output
Note:
X: The signal setting is irrelevant to port
signal [i] function.
Figure 7-20
Port Data Register (PDR) (PDRC X:$FFFFBD)
(PDRD X:$FFFFAD)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
PD0
PD1
PD2
PD3
PD4
PD5
Reserved Bit, Read As Zero, Should Be Written With Zero For Future Compatibility
16
17
18
19
20
21
22
23
AA0690
STDn
SRDn
SCKn
SCKn2 SCKn1 SCKn0
PDRD: ESSI0, PDRD: ESSI1
Содержание DSP56309
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Страница 47: ...1 18 DSP56309UM D MOTOROLA DSP56309 Overview DSP56309 Architecture Overview ...
Страница 48: ...MOTOROLA DSP56309UM D 2 1 SECTION 2 SIGNAL CONNECTION DESCRIPTIONS ...
Страница 85: ...2 38 DSP56309UM D MOTOROLA Signal Connection Descriptions OnCE JTAG Interface ...
Страница 86: ...MOTOROLA DSP56309UM D 3 1 SECTION 3 MEMORY CONFIGURATION ...
Страница 104: ...MOTOROLA DSP56309UM D 4 1 SECTION 4 CORE CONFIGURATION ...
Страница 124: ...MOTOROLA DSP56309UM D 5 1 SECTION 5 GENERAL PURPOSE I O ...
Страница 125: ...5 2 DSP56309UM D MOTOROLA General Purpose I O 5 1 INTRODUCTION 5 3 5 2 PROGRAMMING MODEL 5 3 ...
Страница 128: ...MOTOROLA DSP56309UM D 6 1 SECTION 6 HOST INTERFACE HI08 ...
Страница 166: ...MOTOROLA DSP56309UM D 7 1 SECTION 7 ENHANCED SYNCHRONOUS SERIAL INTERFACE ESSI ...
Страница 212: ...MOTOROLA DSP56309UM D 8 1 SECTION 8 SERIAL COMMUNICATION INTERFACE SCI ...
Страница 241: ...8 30 DSP56309UM D MOTOROLA Serial Communication Interface SCI GPIO Signals and Registers ...
Страница 242: ...MOTOROLA DSP56309UM D 9 1 SECTION 9 TRIPLE TIMER MODULE ...
Страница 269: ...9 28 DSP56309UM D MOTOROLA Triple Timer Module Timer Operational Modes ...
Страница 270: ...MOTOROLA DSP56309UM D 10 1 SECTION 10 ON CHIP EMULATION MODULE ...
Страница 302: ...MOTOROLA DSP56309UM D 11 1 SECTION 11 JTAG PORT ...
Страница 369: ...C 22 DSP56309UM D MOTOROLA DSP56309 BSDL Listing ...
Страница 370: ...MOTOROLA DSP56309UM D D 1 APPENDIX D PROGRAMMING REFERENCE ...
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