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ADSP-214xx SHARC Processor Hardware Reference 20-1

20 UART PORT CONTROLLER

The universal asynchronous receiver/transmitter (UART) is a full-duplex

peripheral compatible with the PC-style, industry-standard UART. The

interface specifications are shown in Table 20-1.

Table 20-1. UART Specifications

Feature Availability

Connectivity

Multiplexed Pinout No

SRU DAI Required No

SRU DAI Default Routing N/A

SRU2 DPI Required Yes

SRU2 DPI Default Routing Yes

Interrupt Control Yes

Protocol

Master Capable Yes

Slave Capable Yes

Transmission Simplex Yes

Transmission Half Duplex Yes

Transmission Full Duplex Yes

Access Type

Data Buffer Yes

Core Data Access Yes

DMA Data Access Yes

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Contents3
Preface61
- Purpose of This Manual61
- Intended Audience61
- Manual Contents62
- What’s New in This Manual65
- Technical or Customer Support66
- Supported Processors67
- Product Information68
- Notation Conventions70
1 Introduction73
- Design Advantages73
  - SHARC Family Product Offerings74
- Processor Architectural Overview74
  - Processor Core74
  - I/O Peripherals75
- Development Tools77
- Differences from Previous Processors77
  - I/O Architecture Enhancements78
2 I/O Processor79
- Features80
- Register Overview81
- DMA Channel Registers81
- TCB Storage91
- Clocking100
- Functional Description100
- Operating Modes108
- Interrupts123
- Debug Features127
  - Emulation Considerations127
- Effect Latency127
- Programming Model128
  - General Procedure for Configuring DMA129
3 External Port131
- Features132
- Pin Descriptions133
  - Pin Multiplexing133
- Register Overview133
- Clocking AMI/SDRAM135
- Clocking AMI/DDR2136
- External Port Arbitration137
- Functional Description137
  - Operating Mode140
    - Arbitration Freezing140
- Asynchronous Memory Interface140
- SDRAM Controller (ADSP-2147x/ADSP-2148x)147
- DDR2 DRAM Controller (ADSP-2146x)176
- Data Transfer214
- External Port DMA230
- Interrupts244
- External Port Throughput246
- Effect Latency250
  - Write Effect Latency251
- Programming Models251
4 Link Ports—ADSP-2146x265
- Features266
- Pin Descriptions267
- Register Overview267
- Clocking268
- Functional Description268
- Data Transfer277
- Interrupts280
- Debug Features285
  - Shadow Register285
  - Buffer Hang Disable (BHD)286
- Effect Latency286
  - Write Effect Latency286
  - Link Port Effect Latency286
- Programming Model286
5 Memory-to-Memory Port DMA291
- Features292
- Register Overview292
- Clocking292
- Functional Description293
- Data Transfer Types293
  - Data Buffer293
  - DMA Transfer294
- Interrupts294
- MTM Throughput295
- Effect Latency295
  - Write Effect Latency295
  - MTM Effect Latency295
- Programming Model295
6 FFT/FIR/IIR Hardware Modules297
- FFT Accelerator299
- FIR Accelerator324
- IIR Accelerator351
7 Pulse Width Modulation369
- Features370
- Pin Descriptions372
  - Multiplexing Scheme372
- SRU Programming373
- Register Overview373
- Clocking374
- Functional Description374
- Operation Modes386
- Interrupts393
- Debug Features395
  - Status Debug Register395
  - Emulation Considerations395
- Effect Latency395
  - Write Effect Latency395
  - PWM Effect Latency395
8 Media Local Bus397
- Features399
- Pin Descriptions399
- Register Overview400
  - Device Configuration and Status Registers400
  - Channel Configuration Registers400
- Clocking401
- Functional Description401
- Operating Modes403
  - Streaming Channel Frame Synchronization403
  - Big-Endian and Little-Endian Mode404
- Data Transfer404
  - Core Driven Data Transfer404
    - I/O Local Channel Buffering404
  - DMA406
    - Ping-Pong DMA407
    - Circular Buffer DMA409
- Interrupts410
  - Interrupt Source411
  - Servicing Interrupts411
- Debug Features411
  - Loop-Back Test Mode412
- Programming Model412
  - I/O Interrupt Mode412
  - DMA Modes413
9 Digital Application/Digital Peripheral Interfaces415
- Features416
- Register Overview417
- Clocking418
- Functional Description418
- DAI Default Routing442
- DPI Default Routing445
- Interrupts446
- Debug Features454
- Effect Latency456
  - Write Effect Latency456
  - Signal Routing Unit Effect Latency456
- Programming Model456
  - DAI Example System457
10 Serial Ports459
- Features460
- Pin Descriptions462
- SRU Programming463
  - SRU SPORT Receive Master464
  - SRU SPORT Signal Integrity464
- Register Overview465
- Clocking466
- Functional Description468
- Operation Modes479
- Data Transfers497
- Interrupts507
- Debug Features511
  - SPORT Loopback512
    - LoopBack Routing512
  - Buffer Hang Disable (BHD)512
- Effect Latency512
  - Write Effect Latency513
  - SPORT Effect Latency513
- Programming Model513
11 Input Data Port521
- Features522
- Pin Descriptions523
- SRU Programming525
- Register Overview525
- Clocking526
- Functional Description526
- Operating Modes528
- Data Transfer534
- Interrupts543
- Debug Features545
- Effect Latency546
  - Write Effect Latency546
  - IDP Effect Latency546
- Programming Model546
12 Asynchronous Sample Rate Converter553
- Features554
- Pin Descriptions555
- SRU Programming555
- Register Overview556
- Clocking557
- Functional Description557
  - Serial Data Ports561
- Operating Modes561
- Interrupts568
- Debug Features569
- Effect Latency569
  - Write Effect Latency569
  - SRC Effect Latency570
13 Sony/Philips Digital Interface571
- Features572
- Pin Descriptions573
- SRU Programming574
- Register Overview576
- Clocking577
- S/PDIF Transmitter577
  - Functional Description577
    - Input Data Format579
  - Operating Modes581
- S/PDIF Receiver583
  - Functional Description583
  - Operating Modes586
    - Compressed or Non-linear Audio Data586
      - Emphasized Audio Data587
      - Single-Channel Double-Frequency Mode588
    - Clock Recovery Modes588
      - Digital On-Chip PLL588
      - External Analog PLL589
- Interrupts589
- Debug Features591
  - Loop Back Routing591
- Effect Latency591
  - Write Effect Latency591
- Programming Model591
14 Precision Clock Generator595
- Features596
- Pin Descriptions597
- SRU Programming598
- Register Overview599
- Clocking599
- Functional Description600
  - Serial Clock600
  - Frame Sync601
- Operating Modes605
- Effect Latency613
  - Write Effect Latency613
  - PCG Effect Latency613
- Programming Model614
  - Frame Sync Phase Setting614
  - External Event Trigger614
- Debug Features615
15 Serial Peripheral Interface Ports617
- Features618
- Pin Descriptions619
- SRU Programming620
- Register Overview621
- Clocking622
  - Choosing the Pin Enable for the SPI Clock623
- Functional Description624
- Operating Modes628
- Data Transfers634
- Interrupts640
  - Interrupt Sources640
  - Multi Master Error642
- Debug Features643
  - Shadow Receive Buffers643
  - Internal Loopback Mode644
    - Loop Back Routing644
- Effect Latency644
  - Write Effect Latency645
  - SPI Effect Latency645
- Programming Model645
16 Peripheral Timers657
- Features658
- Pin Descriptions659
- SRU Programming659
- Register Overview660
  - Read-Modify-Write661
- Clocking661
- Functional Description661
- Operating Modes663
- Interrupts673
  - Sources673
  - Watchdog Functionality675
- Debug Features675
  - Loopback Routing675
  - Loopback Routing675
- Effect Latency675
  - Write Effect Latency676
  - Peripheral Timers Effect Latency676
- Programming Model677
17 Shift Register – ADSP-2147x681
- Features682
- Pin Descriptions683
- SRU Programming683
- Register Overview684
- Clocking684
- Functional Description685
- Operating Modes686
  - Serial Data Output686
  - Parallel Data Output687
- Effect Latency688
  - Write Effect Latency688
  - Shift Register Effect Latency688
- Programming Model688
18 Real-Time Clock— ADSP-2147x689
- Features690
- Pin Descriptions691
- Clocking691
- Register Overview691
- Functional Description692
- Interrupts698
19 WatchDog Timer – ADSP-2147x705
- Features706
- Pin Descriptions707
- Register Overview707
- Clocking708
- Functional Description708
- Operating Mode710
  - Trip Count710
- Debug Features711
  - Emulation Considerations711
- Effect Latency711
  - Write Effect Latency711
  - Watchdog Timers Effect Latency711
- Programming Model711
20 UART Port Controller715
- Features716
- SRU Programming717
- Register Overview717
- Clocking718
- Functional Description719
  - Serial Communication721
- Operating Modes722
  - Data Packing722
  - 9-Bit Transmission Mode722
    - Packed Mode723
- Data Transfer Types724
- Interrupts728
- Debug Features734
- Effect Latency734
  - Write Effect Latency735
  - UART Effect Latency735
- Programming Model735
21 Two Wire Interface Controller739
- Features740
- Pin Descriptions741
- SRU Programming742
- Clocking742
- Register Overview743
- Functional Description744
- Data Transfer750
  - Data Buffers750
- Operating Modes752
  - General Call Addressing752
  - Fast Mode753
- Interrupts753
  - Interrupt Routing754
    - DPI754
    - TWI754
  - Interrupt Sources755
- Debug Features756
  - Buffer Hang Disable756
  - Loop Back Routing756
- Effect Latency757
  - Write Effect Latency757
  - TWI Effect Latency757
- Programming Model757
- Electrical Specifications764
22 Power Management765
- Features765
- Register Overview765
- Phase-Locked Loop (PLL)766
- Operating Modes771
- Power-Up Sequence772
  - PLL Start-Up773
- Power Management774
- Programming Models777
23 System Design783
- Features783
- Pin Descriptions784
- Register Overview784
- Processor Reset785
- Processor Booting789
- Programming Model806
- Pin Multiplexing810
- High Frequency Design815
- System Components822
  - Power Management Circuits822
  - Supervisory Circuits823
- Definition of Terms825
A Registers Reference827
- Overview828
  - Register Diagram Conventions828
  - Bit Types and Settings829
- System and Power Management Registers830
- ADSP-2146x External Port Registers844
- ADSP-2147x, ADSP-2148x External Port Registers871
- External Port DMA Control Registers (DMACx)886
- Peripheral Registers889
- DAI Signal Routing Unit Registers944
- Peripherals Routed Through the DAI976
- DPI Signal Routing Unit Registers1044
- Peripherals Routed Through the DPI1057
- Register Listing1099
B Peripheral Interrupt Control1133
- Interrupt Latency1133
- Interrupt Acknowledge1134
- Interrupt Completion1135
- Interrupt Priority1136
  - Peripherals with Multiple Interrupt Vector Addresses1139
  - Priority Interrupt Control Registers (PICRx)1140
C Audio Frame Formats1143
- Overview1144
- Standard Serial Mode1144
- I2S Mode1145
- Left-Justified Mode1147
- Right-Justified Mode1147
- TDM Mode1148
  - Packed I2S Mode1149
  - MOST Mode1150
- AES/EBU/SPDIF Formats1151
I Index1159
- Numerics1159
- A1159
- B1160
- C1161
- D1162
- E1165
- F1168
- G1170
- H1170
- I1170
- K1172
- L1173
- M1173
- N1175
- O1175
- P1176
- R1178
- S1180
- T1187
- U1189
- V1190
- W1190

Brand	Analog Devices
Model	SHARC ADSP-214 Series
Category	Computer Hardware
Language	English

Analog Devices SHARC ADSP-214 Series User Manual

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Analog Devices SHARC ADSP-214 Series Specifications

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