Siemens C541U Manuals

Manuals and User Guides for Siemens C541U. We have 1 Siemens C541U manual available for free PDF download: User Manual

Siemens C541U User Manual

Siemens C541U User Manual (192 pages)

8-Bit CMOS Microcontroller

Brand: Siemens | Category: Microcontrollers | Size: 2.01 MB

Table of Contents

Table of Contents
4
Introduction

8
- Pin Configuration
  11
- Pin Definitions and Functions
  12
Fundamental Structure

16
- Cpu
  17
- CPU Timing
  19
Memory Organization

22
- Data Memory, "Data Space
  23
- General Purpose Registers
  23
- Program Memory, "Code Space
  23
- Special Function Registers
  23
- Accessing External Memory
  32
External Bus Interface

32
PSEN, Program Store Enable

34
- Timing
  34
- ALE, Address Latch Enable
  35
- Enhanced Hooks Emulation Concept
  36
- Hardware Reset Operation
  38
Reset and System Clock Operation

38
On-Chip Peripheral Components

46
- Parallel I/O
  46
- Port Structures
  47
- Basic Port Circuirty of Port 1 to 3
  48
- SSC Port Pins of Port 1
  51
- Port 0 Circuitry
  53
- Port 0 and Port 2 Used as Address/Data Bus
  54
  - Alternate Functions
    55
  - Port Handling
    57
- Port Timing
  57
- Port Loading and Interfacing
  58
- Read-Modify-Write Feature of Ports 1,2 and 3
  59
  - Timers/Counters
    60
  - Timer/Counter 0 and 1
    60
- Mode 0
  64
  - SSC Interface
    68
  - General Operation of the SSC
    69
  - Enable/Disable Control
    69
  - Baudrate Generation (Master Mode Only)
    70
  - Write Collision Detection
    70
  - Master/Slave Mode Selection
    71
  - Data/Clock Timing Relationships
    72
- Master Mode Operation
  72
- Slave Mode Operation
  73
  - Register Description
    74
  - USB Module
    79
  - Transfer Modes
    80
  - USB Memory Buffer Modes
    81
- Overview
  81
- Single Buffer Mode
  81
- USB Write Access
  82
- USB Read Access
  84
- Dual Buffer Mode
  87
- Data Stage
  98
- Setup Stage
  98
- Status Stage
  98
  - Register Set
    99
- Global Registers
  99
- Device Registers
  104
  - Low Speed Mode
    105
- Initialization
  120
- Control Transfer
  121
- Data Stage
  121
- Setup Stage
  121
- Status Stage
  121
- Transfer Modes
  121
- Interrupt Transfer
  122
- Register Set
  123
- USB Low Speed Interrupts
  128
  - On-Chip USB Transceiver
    129
  - Detection of Connected Devices
    131
  - Detach / Attach Detection
    132
- Bus-Powered Mode
  132
Interrupt System

134
- Self-Powered Mode
  132
- Interrupt Enable Registers
  137
- Interrupt Registers
  137
- Interrupt Request / Control Flags
  143
- Interrupt Prioritiy Registers
  149
- Interrupt Priority Level Structure
  150
- How Interrupts Are Handled
  151
- External Interrupts
  153
- Interrupt Response Time
  155
Fail Safe Mechanisms

156
- Programmable Watchdog Timer
  156
- Input Clock Selection
  157
- Watchdog Timer Control / Status Flags
  158
- Refreshing the Watchdog Timer
  159
- Starting the Watchdog Timer
  159
- Watchdog Reset and Watchdog Status Flag
  159
- Oscillator Watchdog Unit
  160
- Functionality of the Oscillator Watchdog Unit
  161
- Fast Internal Reset after Power-On
  162
Power Saving Modes

164
- Idle Mode
  166
- Entering Idle Mode
  167
- Exit from Idle Mode
  167
- Power down Mode
  168
- Entering Power down Mode
  169
- Exit from Power down Mode
  170
- Exit Via Pin P3.2/INT0
  171
- Exit Via UBS Bus
  171
OTP Memory Operation

172
- Programming Configuration
  172
- Pin Configuration
  173
- Pin Definitions
  174
- Programming Mode Selection
  176
- Basic Programming Mode Selection
  176
- OTP Memory Access Mode Selection
  177
- Program / Read OTP Memory Bytes
  178
- Lock Bits Programming / Read
  180
- Access of Version Bytes
  182
- OTP Verify with Protection Level
  183
Index

186

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