Freescale Semiconductor DSP56364 Manuale Utente Scaricare il pdf (Pagina 42)

GPIO Signals

DSP56364 24-Bit Digital Signal Processor Users Manual, Rev. 2

2-14 Freescale Semiconductor

2.10 GPIO Signals

Table 2-12 GPIO Signals

Signal

Name

Signal Type

State during

Reset

Signal Description

GPIO0-

GPIO3

Input, output or

disconnected

disconnected GPIO0-3- The General Purpose I/O pins are used for control and handshake

functions between the DSP and external circuitry. Each Port B GPIO pin may

be individually programmed as an input, output or disconnected

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 183 184

Processor 1
Contents 3
3 Memory Configuration 4
4 Core Configuration 4
Freescale Semiconductor v 5
Freescale Semiconductor vii 7
BookTitle, Rev. # 10
List of Figures 11
List of Tables 13
Freescale Semiconductor xv 15
Manual Conventions 16
Freescale Semiconductor xvii 17
1 Overview 19
1.2 Features 20
Audio Processor Architecture 21
Freescale Semiconductor 1-3 21
1.5.1 Data ALU 22
1.5.1.1 Data ALU Registers 23
1.5.4 Internal Buses 24
Freescale Semiconductor 1-7 25
1.6.3 Bootstrap ROM 26
1.6.1 Reserved Memory Spaces 26
1.6.5 External Memory Support 27
1.8 Status Register (SR) 28
2.1 Signal Groupings 29
DSP56364 30
2.2 Power 31
2.3 Ground 31
2.5.1 External Address Bus 32
2.5.2 External Data Bus 33
2.5.3 External Bus Control 33
After RESET 34
2.7 Serial Host Interface 35
2.9 JTAG/OnCE Interface 41
2.10 GPIO Signals 42
3.1.1 Program Memory Space 43
3.1.2 Data Memory Spaces 44
3.1.2.2 X Data RAM 45
3.1.2.3 Y Data Memory Space 45
3.1.2.4 Y Data RAM 45
3.3.1 RAM Locations 46
3.3.2 ROM Locations 46
Internal Memory Configuration 47
Freescale Semiconductor 3-5 47
3.4 Memory Maps 48
Memory Maps 49
Freescale Semiconductor 3-7 49
3.5 External Memory Support 50
3.6 Internal I/O Memory Map 50
4.2.1 Mode C (MC) - Bit 2 52
4.3 Operating Modes 53
4.4 Bootstrap Program 54
Interrupt Priority Registers 56
4-6 Freescale Semiconductor 56
4.6 DMA Request Sources 57
4.7 PLL and Clock Generator 57
5.1 Introduction 61
5.2 GPIO Programming Model 61
GPIO Programming Model 64
5-4 Freescale Semiconductor 64
6.1 Introduction 65
Introduction 66
6-2 Freescale Semiconductor 66
ESAI Data and Control Pins 67
Freescale Semiconductor 6-3 67
6-4 Freescale Semiconductor 68
6.3 ESAI Programming Model 71
Figure 6-2 TCCR Register 72
Freescale Semiconductor 6-9 73
6-10 Freescale Semiconductor 74
6-12 Freescale Semiconductor 76
Figure 6-5 TCR Register 77
6-14 Freescale Semiconductor 78
Freescale Semiconductor 6-15 79
Normal Mode 81
Network Mode 81
Figure 6-14 82
6-20 Freescale Semiconductor 84
Freescale Semiconductor 6-21 85
6-22 Freescale Semiconductor 86
Figure 6-8 RCCR Register 87
Figure 6-9 RCR Register 91
6-28 Freescale Semiconductor 92
Freescale Semiconductor 6-31 95
Figure 6-10 SAICR Register 96
Freescale Semiconductor 6-33 97
6-34 Freescale Semiconductor 98
Figure 6-12 SAISR Register 99
ESAI Programming Model 100
6-36 Freescale Semiconductor 100
Freescale Semiconductor 6-37 101
6-38 Freescale Semiconductor 102
(a) Receive Registers 103
(b) Transmit Registers 103
Freescale Semiconductor 6-41 105
Figure 6-15 TSMA Register 106
Figure 6-16 TSMB Register 106
Figure 6-17 RSMA Register 107
Figure 6-18 RSMB Register 107
6.4.1 ESAI After Reset 108
6.4.2 ESAI Initialization 108
6.4.3 ESAI Interrupt Requests 109
Operating Modes 110
6-46 Freescale Semiconductor 110
6.4.4.3 Frame Sync Selection 111
6.4.5 Serial I/O Flags 112
Figure 6-19 PCRC Register 113
Figure 6-20 PRRC Register 113
Figure 6-21 PDRC Register 114
ESAI Initialization Examples 115
Freescale Semiconductor 6-51 115
6-52 Freescale Semiconductor 116
7 Serial Host Interface 117
7-2 Freescale Semiconductor 118
7.3 SHI Clock Generator 119
7-4 Freescale Semiconductor 120
7-6 Freescale Semiconductor 122
7.4.4.2 HSAR I 123
7-8 Freescale Semiconductor 124
Freescale Semiconductor 7-9 125
Table 7-4 SHI Data Size 127
Freescale Semiconductor 7-15 131
7.5 SPI Bus Characteristics 132
7.6.1 Overview 133
C Bus Characteristics 134
7-18 Freescale Semiconductor 134
C Data Transfer Formats 135
7.7.1 SPI Slave Mode 136
7.7.2 SPI Master Mode 137
C Slave Mode 137
7.7.3.1 Receive Data in I 138
C Master Mode 139
7.7.4.1 Receive Data in I 140
7.7.4.2 Transmit Data In I 141
7-26 Freescale Semiconductor 142
Appendix A Bootstrap ROM 143
A-2 Freescale Semiconductor 144
Freescale Semiconductor A-3 145
A-4 Freescale Semiconductor 146
Freescale Semiconductor A-5 147
A-6 Freescale Semiconductor 148
Freescale Semiconductor A-7 149
A-8 Freescale Semiconductor 150
Appendix B BDSL File 151
B-2 Freescale Semiconductor 152
Freescale Semiconductor B-3 153
B-4 Freescale Semiconductor 154
Freescale Semiconductor B-5 155
B-6 Freescale Semiconductor 156
C.1.1 Peripheral Addresses 157
C.1.2 Interrupt Addresses 157
C.1.3 Interrupt Priorities 157
Programmer’s Reference 158
C.2 Programming Sheets 164
Central Processor 165
=Reserved, program as 1 166
CENTRAL PROCESSOR 167
C-12 Freescale Semiconductor 168
Bits XTLR and 169
C-14 Freescale Semiconductor 170
SHI Host Receive 171
C-16 Freescale Semiconductor 172
X: $FFFFB6 Reset: $000000 173
X: $FFFFB5 Reset: $000000 174
X: $FFFFB8 Reset: $000000 175
X: $FFFFB7 Reset: $000000 176
X: $FFFFB4 Reset: $000000 177
SAISR - ESAI Status Register 178
X: $FFFFB3 Reset $000000 178
Freescale Semiconductor C-23 179
C-24 Freescale Semiconductor 180

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