Cypress EZ-USB Series 2100 Service Manual Page 207
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Page 12-14 Chapter 12. EZ-USB Registers EZ-USB TRM v1.9
Figure 12-10. 230-Kbaud UART Operation Register
Bit 1: UART1 Universal 115/230 Kbaud operation for UART1
Bit 0: UART0 Universal 115/230 Kbaud operation for UART0
These bits, when set to “1,” connect an internal 3.69-MHz clock to UART0 and/or
UART1. The UARTs divide this frequency by 16, giving a 230-KHz baud clock if the cor-
responding SMOD bit is set, or 115 baud clock if the corresponding SMOD bit is clear.
(NOTE: SMOD0 is bit 7 or SFR 0x87, SMOD1 is bit 7 or SFR 0xD8). When the UART0
or UART1 bit is clear, the normal UART clock sources are used.
Figure 12-11. Isochronous OUT Endpoint Error Register
The ISOERR bits are updated at every SOF. They indicate that a CRC error was received
on a data packet for the current frame. The ISOERR bit status refers to the USB data
received in the previous frame, and which is currently in the endpoint’s OUT FIFO. If the
ISOERR bit = 1, indicating a bad CRC check, the data is still available in the OUTnDATA
register.
12.8 230-Kbaud UART Operation - AN2122, AN2126
UART230 230-Kbaud UART Control 7F9F
b7 b6 b5 b4 b3 b2 b1 b0
- - - - - - UART1 UART0
R R R R R R R/W R/W
0 0 0 0 0 0 0 0
12.9 Isochronous Control/Status Registers
ISOERR Isochronous OUT EP Error 7FA0
b7 b6 b5 b4 b3 b2 b1 b0
ISO15ERR ISO14ERR ISO13ERR ISO12ERR ISO11ERR ISO10ERR ISO9ERR ISO8ERR
R R R R R R R R
x x x x x x x x
- Technical Reference 1
- Technical Support: 3
- Phone: (858) 613-7929 3
- E-mail: [email protected] 3
- Website: 3
- 1 Introducing EZ-USB 18
- Figure 1-3. USB Packets 21
- Table 1-1. USB PIDs 21
- Interface 27
- 1.20 Pin Descriptions 35
- 2 EZ-USB CPU 46
- Figure 2-1. 8051 Registers 48
- Table 2-1. EZ-USB Interrupts 49
- 2.9 SFRs 51
- 3 EZ-USB Memory 54
- Inside EZ-USB Outside EZ-USB 57
- Inside EZ-USB 60
- Outside EZ-USB 60
- 4 EZ-USB Input/Output 62
- Alternate Function Input 65
- 4.3 IO Port Registers 66
- Figure 4-5. General I 67
- CTransfer 67
- Figure 4-6. Addressing an I 68
- CPeripheral 68
- ID1 ID0 Meaning 75
- 0 0 No EEPROM detected 75
- 1 1 Not used 75
- Table 5-3. Firmware Download 80
- Table 5-4. Firmware Upload 81
- 00000100 86
- Internal Logic 87
- Field Descriptio n Value 88
- 6 EZ-USB Bulk Transfers 98
- EPnIN Interrupt, INnBSY=0 101
- (INnBC loaded) 101
- Q S R IO 0 EP2 EP1 EP0 108
- 1. Set up the jump table 114
- A15 A14 A13 A12 A11 A10 A9 A8 119
- A7 A6 A5 A4 A3 A2 A1 A0 119
- D7 D6 D5 D4 D3 D2 D1 D0 119
- 7 EZ-USB Endpoint Zero 122
- SETUP Stage 123
- DATA Stage 123
- STATUS Stage 123
- SETUPDAT 124
- Initialization 125
- Data transfer 125
- Interrupt Control 125
- from SETUPDAT. The Field 126
- Interrupt 128
- Table 7-16. Set Configuration 140
- Table 7-17. Get Configuration 140
- Table 7-20. Sync Frame 143
- Table 7-21. Firmware Download 144
- Table 7-22. Firmware Upload 144
- 8051 FIFO 146
- USB FIFO 146
- Initialization Data transfer 147
- Register 150
- 41.66 ns 157
- Figure 8-12. Fast Read Timing 158
- Figure 8-14. ISOCTL Register 160
- Figure 8-15. ZBCOUT Register 161
- 9 EZ-USB Interrupts 164
- "RESUME" 165
- Resume signal 165
- ; interrupt request 166
- 9.4 USB Signaling Interrupts 167
- Address Op-Code Hex Val ue 173
- 0043 Jump 0x02 173
- 0044 AddrH 0xHH 173
- 0045 AddrL 0xLL 173
- Instruction 174
- Figure 9-8. I 176
- 0 0 0 0 0 0 STOPIE 0 178
- EZ-USB Core 180
- 12 EZ-USB Registers 194
- 12.3 Isochronous Data FIFOs 197
- 12.4 Isochronous Byte Counts 199
- R R R R R R R/W R 201
- RV3 RV2 RV1 RV0 0 0 1 1 201
- PINSA Port A Pins 7F99 205
- PINSB Port B Pins 7F9A 205
- OUTC Port C Pins 7F98 205
- - - - - - - UART1 UART0 207
- 0 IV4 IV3 IV2 IV1 IV0 0 0 212
- * AN2122/AN2126 only 214
- 0 0 0 0 0 0 0 0 219
- - BC6 BC5 BC4 BC3 BC2 BC1 BC0 222
- - - - - - - INnBSY INnSTL 225
- - D6 D5 D4 D3 D2 D1 D0 227
- - - - - - - OUTnBSY OUTnSTL 228
- R/W R R R R/W R/W R/W R/W 231
- 0 0 0 0 0 1 0 0 231
- 0 0 0 0 0 FC10 FC9 FC8 234
- 0 FA6 FA5 FA4 FA3 FA2 FA1 FA0 235
- 0 x 0 0 0 0 0 0 236
- FWR# pulses 240
- Bit 1-0: WMOD FWR# Pulse Mode 240
- A9 A8 A7 A6 A5 A4 0 0 243
- 13 EZ-USB AC/DC Parameters 246
- 13.1.5 General Memory Timing 247
- 13.1.6 Program Memory Read 247
- 13.1.7 Data Memory Read 247
- 13.1.8 Data Memory Write 248
- 13.1.9 Fast Data Write 248
- 13.1.10 Fast Data Read 248
- A [15.0] 250
- Fast Transfer Block Diagram 251
- FRD#[00] 252
- FRD#[01] 253
- FWR#[10] 254
- FRD#[11] 255
- 14 EZ-USB Packaging 256
- 14.2 80-Pin PQFP Package 258
- Detail "A" 259
- 14.3 48-Pin TQFP Package 260
- EZ-USB v 1.9 Appendices 262
- Table of Contents 262
- List of Figures 272
- List of Tables 274
- Appendix A: 8051 Introduction 275
- 803x/805x configurations 278
- A.6.1 Serial Ports 279
- A.6.2 Timer 2 279
- A.6.3 Timed Access Protection 279
- A.6.4 Watchdog Timer 279
- 8051_cpu 281
- B.1.1 Memory Organization 282
- B.1.2 Instruction Set 283
- B.1.3 Instruction Timing 289
- B.1.4 CPU Timing 290
- B.1.6 Dual Data Pointers 291
- C.2.1 803x/805x Compatibility 298
- C.2.2 Timers 0 and 1 298
- C.2.3 Mode 0 298
- C.2.4 Mode 1 299
- C.2.5 Mode 2 302
- C.2.6 Mode 3 303
- C.2.7 Timer Rate Control 304
- C.2.8 Timer 2 305
- C.3.1 803x/805x Compatibility 310
- C.3.2 Mode 0 310
- D0 D1 D2 D3 D4 D5 D6 D7 313
- D1 D2 D3 D4 D5 D6 D7 313
- C.3.3 Mode 1 315
- C.3.4 Mode 2 320
- C.3.5 Mode 3 322
- C.3.7 Interrupt SFRs 323
- C.4.1 Interrupt Masking 329
- C.4.2 Interrupt Priorities 330
- C.4.3 Interrupt Sampling 331
- C.4.4 Interrupt Latency 332
- C.4.5 Single-Step Operation 332
- C.6.1 Idle Mode 332
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