User’s Manual
8.6 Allocation of Extended Code and Data
............................................................................109
8.7 Instruction and Data Space Support
................................................................................110
8.8 How the Compiler Compiles to Memory
.........................................................................113
............................................................................................................116
............................................................................................................117
............................................................................................................118
............................................................................................................119
............................................................................................................123
............................................................................................................126
............................................................................................................128
Chapter 10. I/O Bank Control Registers
...................................................................................................................134
11.1.1 Timer A I/O Registers ............................................................................................................135
11.1.2 Practical Use of Timer A .......................................................................................................137
...................................................................................................................139
Chapter 12. Rabbit Serial Ports
12.1 Serial Port Register Layout
..........................................................................................146
...................................................................................................148
...................................................................................................161
12.4 Transmit Serial Data Timing
........................................................................................162
12.5 Receive Serial Data Timing
.........................................................................................163
...................................................................................................164
................................................................................................167
12.8 Synchronous Communications on Ports E and F
..............................................................169
12.9 Serial Port Software Suggestions
..................................................................................173
12.9.1 Controlling an RS-485 Driver and Receiver ..........................................................................175
12.9.2 Transmitting Dummy Characters ...........................................................................................175
12.9.3 Transmitting and Detecting a Break ......................................................................................176
12.9.4 Using A Serial Port to Generate a Periodic Interrupt .............................................................176
12.9.5 Extra Stop Bits, Sending Parity, 9th Bit Communication Schemes .......................................176
12.9.6 Parity, Extra Stop Bits with 7-Data-Bit Characters ...............................................................177
12.9.7 Parity, Extra Stop Bits with 8-Data-Bit Characters ...............................................................177
12.9.8 Supporting 9th Bit Communication Protocols .......................................................................178
12.9.9 Rabbit-Only Master/Slave Protocol .......................................................................................178
12.9.10 Data Framing/Modbus .........................................................................................................178
13.1 Hardware Design of Slave Port Interconnection
...............................................................186
...................................................................................................186
13.3 Applications and Communications Protocols for Slaves
....................................................188
13.3.1 Slave Applications .................................................................................................................188
13.3.2 Master-Slave Messaging Protocol .........................................................................................189
Chapter 14. Rabbit 3000 Clocks
....................................................................................................191
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