Digi NS7520B Series Microprocessor Manuals

Manuals and User Guides for Digi NS7520B Series Microprocessor. We have 1 Digi NS7520B Series Microprocessor manual available for free PDF download: Hardware Reference Manual

Digi NS7520B Series Hardware Reference Manual

Digi NS7520B Series Hardware Reference Manual (339 pages)

Brand: Digi | Category: Computer Hardware | Size: 1 MB

Table of Contents

Table of Contents
5
Chapter 1 : a B O U T T H E N S 7 5 2 0

13
Chapter 2 : Pinout and Packaging

20
- Packaging
  20
- Pinout Detail Tables and Signal Descriptions
  23
  - System Bus Interface
    24
  - Chip Select Controller
    28
  - Ethernet Interface MAC
    30
  - No Connect" Pins
    33
  - General-Purpose I/O
    33
  - System Clock and Reset
    36
  - System Mode (Test Support)
    37
  - JTAG Test (ARM Debugger)
    38
  - Power Supply
    40
Chapter 3 : Working with the CPU

42
- ARM Thumb Concept
  42
- CPU Performance
  42
- Working with ARM Exceptions
  43
- Hardware Interrupts
  51
  - FIRQ and IRQ Lines
    51
  - Interrupt Controller
    51
  - Interrupt Sources
    52
Chapter 4 : Bbus Module

56
- Bbus Masters and Slaves
  56
- Cycles and Bbus Arbitration
  56
- Address Decoding
  57
Chapter 5 : SYS Module

60
Chapter 6 : GEN Module

74
- Module Configuration
  74
- GEN Module Hardware Initialization
  74
- GEN Module Registers
  75
  - System Control Register
    75
  - System Status Register
    80
  - Software Service Register
    81
  - Timer Control Registers
    82
  - Timer Status Registers
    85
  - PORTA Configuration Register
    85
  - PORTC Configuration Register
    89
- Interrupts
  92
  - Interrupt Controller Registers
    93
Chapter 7 : Memory Controller Module

98
- About the MEM Module
  98
- MEM Module Hardware Initialization
  98
  - Pin Configuration
    98
- MEM Module Configuration
  99
- Static Memory (SRAM) Controller
  114
  - Single Cycle Read/Write
    114
  - Burst Cycles
    116
- NS7520 DRAM Address Multiplexing
  117
  - Using the Internal Multiplexer
    117
  - Using the External Multiplexer
    120
- DRAM Refresh
  121
- FP/EDO DRAM Controller
  121
  - Single Cycle Read/Write
    122
  - FP/EDO DRAM Burst Cycles
    123
- Sdram
  123
  - NS7520 SDRAM Interconnect
    124
  - SDRAM A10/AP Support
    128
  - Command Definitions
    129
  - Memory Timing Fields - SDRAM
    130
  - BSIZE Configuration
    130
  - SDRAM Mode Register
    131
  - SDRAM Read Cycles
    132
  - SDRAM Write Cycles
    134
- Peripheral Page Burst Size
  136
Chapter 8 : DMA Module

140
- DMA Module
  140
  - Fly-By Operation Transfers
    140
  - Memory-To-Memory Operation
    141
- DMA Buffer Descriptor
  142
- DMA Channel Assignments
  144
- DMA Channel Registers
  145
  - Address Map
    145
  - Buffer Descriptor Pointer Register
    148
  - DMA Control Register
    148
  - DMA Status/Interrupt Enable Register
    154
- Ethernet Transfer Considerations
  156
- Ethernet Transmitter Considerations
  157
- Ethernet Receiver Considerations
  157
- External Peripheral DMA Support
  158
  - Signal Description
    159
  - External DMA Configuration
    159
  - Memory-To-Memory Mode
    159
- DMA Controller Reset
  160
Chapter 9 : Ethernet Module

162
- Ethernet Front-End (EFE)
  162
  - Transmit and Receive Fifos
    163
  - EFE Transmit Processing
    163
  - EFE Receive Processing
    163
  - Receive Buffer Descriptor Selection
    164
- External CAM Filtering
  165
- MAC Module
  166
  - MAC Module Block Diagram
    166
- DMA Channel Assignments
  168
- EFE Configuration
  168
  - Ethernet General Control Register (EGCR) Bit Definitions
    170
  - Ethernet General Status Register (EGSR) Bit Definitions
    176
  - Ethernet FIFO Data Register
    179
  - Ethernet Transmit Status Register
    180
  - Ethernet Receive Status Register
    185
  - MAC Configuration Register 1
    188
  - MAC Configuration Register 2
    190
  - Back-To-Back Inter-Packet-Gap Register
    194
  - Non-Back-To-Back Inter-Packet-Gap Register
    195
  - Collision Window/Collision Retry Register
    196
  - Maximum Frame Register
    197
  - PHY Support Register
    198
  - Test Register
    199
  - MII Management Configuration Register
    201
  - MII Management Command Register
    203
  - MII Management Address Register
    204
  - MII Management Write Data Register
    205
  - MII Management Read Data Register
    206
  - MII Management Indicators Register
    207
  - SMII Status Register
    208
  - Station Address Registers
    208
  - Station Address Filter Register
    211
  - Register Hash Table
    212
Chapter 10 : Serial Controller Module

220
- Supported Features
  220
- Bit-Rate Generator
  221
- Serial Protocols
  222
- UART Mode
  222
- SPI Mode
  223
  - FIFO Management
    224
- General-Purpose I/O Configurations
  232
- Serial Port Performance
  233
- Configuration
  233
- Serial Channel Registers
  235
Chapter 11 : Electrical Characteristics

270
- DC Characteristics
  270
  - Recommended Operating Conditions
    270
  - Input/Output Characteristics
    271
  - Pad Pullup and Pulldown Characteristics
    271
  - Absolute Maximum Ratings
    273
- AC Characteristics
  273
  - AC Electrical Specifications
    273
- Oscillator Characteristics
  275
- Timing Diagrams
  277
  - Timing_Specifications
    277
  - Reset_Timing
    278
  - SRAM Timing
    279
  - SDRAM Timing
    289
  - FP DRAM Timing
    295
  - Ethernet Timing
    302
  - JTAG Timing
    304
  - External DMA Timing
    306
  - Serial Internal/External Timing
    309
  - GPIO Timing
    311
Chapter 1 2 : N S 7 5 2 0 E R R a T a

313
- How to Identify the NS7520
  314
- NS7520 Errata
  315

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