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Hodnocené. / 5. Na základě hodnocení zákazníků
Timer Modes of Operation
DSP56366 24-Bit Digital Signal Processor User Manual, Rev. 4
11-12 Freescale Semiconductor
11.3.5 Timer Load Register (TLR)
The TLR is a 24-bit write-only register. In all modes, the counter is preloaded with the TLR value after the
TE bit in the TCSR is set and a first event occurs. The programmer must initialize the TLR to ensure
correct operation in the appropriate timer operating modes.
• In timer modes, if the timer reload mode (TRM) bit in the TCSR is set, the counter is reloaded each
time after it has reached the value contained by the timer compare register (TCR) and the new event
occurs.
• In measurement modes, if the TRM bit in the TCSR is set and the TE bit in the TCSR is set, the
counter is reloaded with the value in the TLR on each appropriate edge of the input signal.
• In PWM modes, if the TRM bit in the TCSR is set, the counter is reloaded each time after it has
overflowed and the new event occurs.
• In watchdog modes, if the TRM bit in the TCSR is set, the counter is reloaded each time after it
has reached the value contained by the TCR and the new event occurs. In this mode, the counter is
also reloaded whenever the TLR is written with a new value while the TE bit in the TCSR is set.
• In all modes, if the TRM bit in the TCSR is cleared (TRM = 0), the counter operates as a
free-running counter.
11.3.6 Timer Compare Register (TCPR)
The TCPR is a 24-bit read/write register that contains the value to be compared to the counter value. These
two values are compared every timer clock after the TE bit in the TCSR is set. When the values match, the
timer compare flag (TCF) bit is set and an interrupt is generated if interrupts are enabled (if the timer
compare interrupt enable (TCIE) bit in the TCSR is set). The programmer must initialize the TCPR to
ensure correct operation in the appropriate timer operating modes. The TCPR is ignored in measurement
modes.
11.3.7 Timer Count Register (TCR)
The TCR is a 24-bit read-only register. In timer and watchdog modes, the counter’s contents can be read
at any time by reading the TCR register. In measurement modes, the TCR is loaded with the current value
of the counter on the appropriate edge of the input signal, and its value can be read to determine the width,
period, or delay of the leading edge of the input signal. When the timer is in measurement modes, the TIO0
signal is used for the input signal.
11.4 Timer Modes of Operation
Each timer has various operational modes that meet a variety of system requirements. These modes are as
follows:
•Timer
— GPIO, mode 0: Internal timer interrupt generated by the internal clock
— Pulse, mode 1: External timer pulse generated by the internal clock
— Toggle, mode 2: Output timing signal toggled by the internal clock
- Processor 1
- Contents 3
- TOC-2 Freescale Semiconductor 4
- Freescale Semiconductor TOC-3 5
- TOC-4 Freescale Semiconductor 6
- Freescale Semiconductor TOC-5 7
- TOC-6 Freescale Semiconductor 8
- Freescale Semiconductor TOC-7 9
- TOC-8 Freescale Semiconductor 10
- Freescale Semiconductor TOC-9 11
- List of Figures 15
- LOF-2 Freescale Semiconductor 16
- Freescale Semiconductor LOF-3 17
- LOF-4 Freescale Semiconductor 18
- List of Tables 19
- LOT-2 Freescale Semiconductor 20
- Freescale Semiconductor i 21
- Manual Conventions 22
- ; ~SS0 as PC3 for GPIO line 3 23
- 1 DSP56366 Overview 25
- 1.2 DSP56300 Core Description 26
- Freescale Semiconductor 1-3 27
- 1.4.1 Data ALU 28
- Freescale Semiconductor 1-5 29
- 1.4.4 Internal Buses 30
- 1.4.8 On-Chip Memory 31
- 1.5 Peripheral Overview 32
- 1.5.1 Host Interface (HDI08) 33
- 1.5.3 Triple Timer (TEC) 33
- Peripheral Overview 34
- 1-10 Freescale Semiconductor 34
- 2.1 Signal Groupings 35
- DSP56366 36
- 2.2 Power 37
- 2.3 Ground 37
- 2.4 Clock and PLL 38
- 2.5.1 External Address Bus 39
- 2.5.2 External Data Bus 39
- 2.5.3 External Bus Control 39
- Table 2-9 Host Interface 43
- 2.8 Serial Host Interface 46
- 2.12 Timer 56
- 2.13 JTAG/OnCE Interface 56
- 3 Memory Configuration 57
- Data and Program Memory Maps 59
- Freescale Semiconductor 3-3 59
- 3-4 Freescale Semiconductor 60
- Freescale Semiconductor 3-5 61
- 3-6 Freescale Semiconductor 62
- Freescale Semiconductor 3-7 63
- 3-8 Freescale Semiconductor 64
- Freescale Semiconductor 3-9 65
- 3-10 Freescale Semiconductor 66
- 3.1.1 Reserved Memory Spaces 67
- 3.1.3 Bootstrap ROM 67
- 3.2 Internal I/O Memory Map 68
- 4 Core Configuration 75
- Operating Mode Register (OMR) 76
- 4-2 Freescale Semiconductor 76
- M_PAE equ 23 ; Patch Enable 77
- 4.3 Operating Modes 78
- Interrupt Priority Registers 81
- Freescale Semiconductor 4-7 81
- 4.5 DMA Request Sources 86
- 4.6 PLL Initialization 87
- 4-18 Freescale Semiconductor 92
- 5.1 Introduction 93
- 5.2 Programming Model 93
- Programming Model 94
- 5-2 Freescale Semiconductor 94
- 6 Host Interface (HDI08) 95
- 6.2.2 Interface - Host Side 96
- 6.3 HDI08 Host Port Signals 97
- 6.4 HDI08 Block Diagram 98
- 6-6 Freescale Semiconductor 100
- Table 6-4 HDI08 IRQ 102
- Freescale Semiconductor 6-13 107
- Figure 6-7 Single strobe bus 108
- Freescale Semiconductor 6-15 109
- 6-18 Freescale Semiconductor 112
- Table 6-11 HDRQ 115
- 6.6.3.6 ISR Reserved Bits 5-6 119
- 6.7.2 Polling 122
- 6.7.3 Servicing Interrupts 123
- Servicing The Host Interface 124
- 6-30 Freescale Semiconductor 124
- 7 Serial Host Interface 125
- 7.3 SHI Clock Generator 126
- I/O Shift Register (IOSR) 127
- 7-4 Freescale Semiconductor 128
- 7-6 Freescale Semiconductor 130
- 7.4.4.2 HSAR I 131
- 7-8 Freescale Semiconductor 132
- Freescale Semiconductor 7-9 133
- Table 7-4 SHI Data Size 135
- Freescale Semiconductor 7-13 137
- Freescale Semiconductor 7-15 139
- 7.6 Characteristics Of The I 140
- 7.6.1 Overview 141
- C Data Transfer Formats 142
- 7.7.1 SPI Slave Mode 143
- 7.7.2 SPI Master Mode 144
- C Slave Mode 145
- 7.7.3.2 Transmit Data In I 146
- C Master Mode 147
- 7.7.4.1 Receive Data in I 148
- 7.7.4.2 Transmit Data In I 148
- Freescale Semiconductor 7-25 149
- 7-26 Freescale Semiconductor 150
- 8.1 Introduction 151
- Introduction 152
- 8-2 Freescale Semiconductor 152
- ESAI Data and Control Pins 153
- Freescale Semiconductor 8-3 153
- 8-4 Freescale Semiconductor 154
- 8.3 ESAI Programming Model 157
- Figure 8-2 TCCR Register 158
- ESAI Programming Model 159
- Freescale Semiconductor 8-9 159
- 8-10 Freescale Semiconductor 160
- 8-12 Freescale Semiconductor 162
- Figure 8-5 TCR Register 163
- 8-14 Freescale Semiconductor 164
- Freescale Semiconductor 8-15 165
- Normal Mode 167
- Network Mode 167
- Figure 8-14 168
- 8-20 Freescale Semiconductor 170
- Freescale Semiconductor 8-21 171
- Figure 8-8 RCCR Register 172
- Freescale Semiconductor 8-23 173
- Figure 8-9 RCR Register 176
- Freescale Semiconductor 8-27 177
- Freescale Semiconductor 8-31 181
- Figure 8-10 SAICR Register 182
- Freescale Semiconductor 8-33 183
- 8-34 Freescale Semiconductor 184
- Figure 8-12 SAISR Register 185
- 8-36 Freescale Semiconductor 186
- Freescale Semiconductor 8-37 187
- (a) Receive Registers 188
- (b) Transmit Registers 188
- 8-40 Freescale Semiconductor 190
- Figure 8-15 TSMA Register 191
- Figure 8-16 TSMB Register 191
- Figure 8-17 RSMA Register 192
- Figure 8-18 RSMB Register 192
- 8.4 Operating Modes 193
- 8.4.3 ESAI Interrupt Requests 194
- Operating Modes 195
- Freescale Semiconductor 8-45 195
- 8.4.5 Serial I/O Flags 196
- 8.5 GPIO - Pins and Registers 197
- Figure 8-19 PCRC Register 198
- Figure 8-20 PRRC Register 198
- Figure 8-21 PDRC Register 199
- ESAI Initialization Examples 200
- 8-50 Freescale Semiconductor 200
- 9.1 Introduction 201
- Clock / Frame Sync 202
- Generators 202
- Control Logic 202
- ESAI_1 Data and Control Pins 203
- Freescale Semiconductor 9-3 203
- 9.3 ESAI_1 Programming Model 204
- Figure 9-2 EMUXR Register 205
- Figure 9-3 TCCR_1 Register 206
- TPSR TPM0 - TPM7 207
- TFP0 - TFP3 207
- Figure 9-6 TCR_1 Register 208
- Figure 9-7 RCCR_1 Register 209
- Figure 9-8 RCR_1 Register 210
- Figure 9-9 SAICR_1 Register 210
- Figure 9-10 SAISR_1 Register 211
- Figure 9-11 TSMA_1 Register 212
- Figure 9-12 TSMB_1 Register 212
- 9.4 Operating Modes 213
- 9.5 GPIO - Pins and Registers 213
- Figure 9-15 PCRE Register 214
- Figure 9-16 PRRE Register 214
- Figure 9-17 PDRE Register 215
- GPIO - Pins and Registers 216
- 9-16 Freescale Semiconductor 216
- 10 Digital Audio Transmitter 217
- 10.2 DAX Signals 218
- 10.3 DAX Functional Overview 218
- 10.4 DAX Programming Model 219
- DAX Internal Architecture 221
- Freescale Semiconductor 10-5 221
- 10-6 Freescale Semiconductor 222
- 10-8 Freescale Semiconductor 224
- 10.5.9 DAX Biphase Encoder 225
- 10.5.11 DAX Clock Multiplexer 225
- 10.5.12 DAX State Machine 226
- 10.6.4 DAX operation with DMA 227
- $FFFFFF; offset=-1 227
- 10-12 Freescale Semiconductor 228
- 11 Timer/ Event Counter 231
- 11-2 Freescale Semiconductor 232
- Freescale Semiconductor 11-3 233
- 76543210 234
- 11.3.1 Prescaler Counter 235
- 11.3.2.3 TPLR Reserved Bit 23 236
- Freescale Semiconductor 11-7 237
- 11-10 Freescale Semiconductor 240
- Freescale Semiconductor 11-11 241
- 11.4 Timer Modes of Operation 242
- 11.4.1 Timer Modes 243
- 11.4.1.2 Timer Pulse (Mode 1) 244
- 11.4.2.1 Measurement Accuracy 246
- 11.4.4 Watchdog Modes 249
- 11.4.5 Reserved Modes 250
- 11.4.6 Special Cases 250
- 11.4.7 DMA Trigger 251
- Timer Modes of Operation 252
- 11-22 Freescale Semiconductor 252
- Freescale Semiconductor A-1 253
- DSP56366 Bootstrap Program 254
- A-2 Freescale Semiconductor 254
- Freescale Semiconductor A-3 255
- A-4 Freescale Semiconductor 256
- Freescale Semiconductor A-5 257
- A-6 Freescale Semiconductor 258
- Freescale Semiconductor A-7 259
- A-8 Freescale Semiconductor 260
- Freescale Semiconductor A-9 261
- A-10 Freescale Semiconductor 262
- Freescale Semiconductor A-11 263
- A-12 Freescale Semiconductor 264
- Freescale Semiconductor A-13 265
- A-14 Freescale Semiconductor 266
- Appendix B Equates 267
- B-2 Freescale Semiconductor 268
- Freescale Semiconductor B-3 269
- B-4 Freescale Semiconductor 270
- Freescale Semiconductor B-5 271
- B-6 Freescale Semiconductor 272
- Freescale Semiconductor B-7 273
- B-8 Freescale Semiconductor 274
- Freescale Semiconductor B-9 275
- B-10 Freescale Semiconductor 276
- Freescale Semiconductor B-11 277
- B-12 Freescale Semiconductor 278
- Freescale Semiconductor B-13 279
- B-14 Freescale Semiconductor 280
- Freescale Semiconductor B-15 281
- B-16 Freescale Semiconductor 282
- Freescale Semiconductor B-17 283
- B-18 Freescale Semiconductor 284
- Freescale Semiconductor B-19 285
- B-20 Freescale Semiconductor 286
- Freescale Semiconductor B-21 287
- B-22 Freescale Semiconductor 288
- Freescale Semiconductor B-23 289
- B-24 Freescale Semiconductor 290
- Freescale Semiconductor B-25 291
- B-26 Freescale Semiconductor 292
- Freescale Semiconductor B-27 293
- B-28 Freescale Semiconductor 294
- Freescale Semiconductor B-29 295
- B-30 Freescale Semiconductor 296
- Freescale Semiconductor B-31 297
- B-32 Freescale Semiconductor 298
- Freescale Semiconductor B-33 299
- B-34 Freescale Semiconductor 300
- Appendix C JTAG BSDL 301
- JTAG BSDL 302
- C-2 Freescale Semiconductor 302
- Freescale Semiconductor C-3 303
- C-4 Freescale Semiconductor 304
- Freescale Semiconductor C-5 305
- C-6 Freescale Semiconductor 306
- Freescale Semiconductor C-7 307
- C-8 Freescale Semiconductor 308
- D.1 Introduction 309
- D.2 Internal I/O Memory Map 309
- D-12 Freescale Semiconductor 320
- Freescale Semiconductor D-13 321
- D-14 Freescale Semiconductor 322
- D.6 Programming Sheets 323
- Central Processor 324
- CENTRAL PROCESSOR 326
- IRQC Mode 326
- IRQD Mode 326
- = Reserved, Program as 0 327
- MF7 MF5 MF4 MF3 MF2 MF1 MF0 328
- HOST (HDI08) 329
- DSP Side 329
- HCP HRDFHF1 HTDEHF0 330
- HCIE HRIEHF3 HTIEHF2 330
- HDM1HDM2 330
- Host Chip Select Polarity 331
- 0 = HCS Active Low 331
- HTRQ & HRRQ Enable 331
- 1 = HCS Active High 331
- Processor Side 333
- = Reserved, write as 0 335
- Application: 336
- Programmer: 336
- Sheet 2 of 3 336
- Programming Sheets 337
- Freescale Semiconductor D-29 337
- X: $FFFFB5 Reset: $000000 339
- X: $FFFFB8 Reset: $000000 340
- X: $FFFFB7 Reset: $000000 341
- X: $FFFFB4 Reset: $000000 342
- SAISR - ESAI Status Register 343
- X: $FFFFB3 Reset $000000 343
- Y: $FFFFAF Reset: $000000 344
- Y: $FFFF95 Reset: $000000 346
- Y: $FFFF98 Reset: $000000 347
- Y: $FFFF97 Reset: $000000 348
- Y: $FFFF94 Reset: $000000 349
- Y: $FFFF93 Reset $000000 350
- XCB XUB XVB XCA XUA XVA 351
- D-44 Freescale Semiconductor 352
- 00 Internal CLK/2 353
- 10 Reserved 353
- 11 Reserved 353
- 1514131211109876543210 356
- Port B (HDI08) 356
- D-52 Freescale Semiconductor 360
- Numerics 361
- OMR register 6 363
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