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ESAI Programming Model
DSP56364 24-Bit Digital Signal Processor Users Manual, Rev. 2
Freescale Semiconductor 6-9
Figure 6-3 ESAI Clock Generator Functional Block Diagram
6.3.1.2 TCCR Transmit Prescaler Range (TPSR) - Bit 8
The TPSR bit controls a fixed divide-by-eight prescaler in series with the variable prescaler. This bit is
used to extend the range of the prescaler for those cases where a slower bit clock is desired. When TPSR
is set, the fixed prescaler is bypassed. When TPSR is cleared, the fixed divide-by-eight prescaler is
FLAG0 OUT
(SYNC MODE)
FLAG0 IN
(SYNC MODE)
SCKR
SCKT
RCKD
TCKD
SYN=1
SYN=0
RCLOCK
TCLOCK
INTERNAL BIT CLOCK
SYN=1
RSWS4-RSWS0
TSWS4-TSWS0
RX WORD
LENGTH DIVIDER
TX WORD
LENGTH DIVIDER
RX SHIFT REGISTER
TX SHIFT REGISTER
DIVIDE
BY 2
PRESCALE
DIVIDE BY 1
OR
DIVIDE BY 8
DIVIDER
DIVIDE BY 1
TO DIVIDE BY
256
TPSR TPM0 - TPM7
RX WORD
CLOCK
TX WORD
CLOCK
SYN=0
DIVIDE
BY 2
PRESCALE
DIVIDE BY 1
OR
DIVIDE BY 8
DIVIDER
DIVIDE BY 1
TO DIVIDE BY
256
F
OSC
RPSR RPM0 - RPM7
RHCKD=1
RHCKD=0
HCKR
RHCKD
DIVIDER
DIVIDE BY 1
TO DIVIDE BY
16
RFP0 - RFP3
F
OSC
THCKD=1
THCKD=0
HCKT
THCKD
DIVIDER
DIVIDE BY 1
TO DIVIDE BY
16
TFP0 - TFP3
Notes:
1. F
OSC
is the DSP56300 Core internal clock frequency.
INTERNAL BIT CLOCK
- 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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