Table of Contents
Advertisement
8XC196NT USER'S MANUAL
CHAPTER 8
8.1
SYNCHRONOUS SERIAL I/O (SSIO) PORT FUNCTIONAL OVERVIEW.................... 8-1
8.2
SSIO PORT SIGNALS AND REGISTERS .................................................................... 8-2
8.3
SSIO OPERATION ........................................................................................................ 8-3
8.4
SSIO HANDSHAKING ................................................................................................... 8-6
8.4.1
SSIO Handshaking Configuration .............................................................................8-6
8.4.2
SSIO Handshaking Operation ...................................................................................8-7
8.5
PROGRAMMING THE SSIO PORT .............................................................................. 8-9
8.5.1
Configuring the SSIO Port Pins ................................................................................8-9
8.5.2
Programming the Baud Rate and Enabling the Baud-rate Generator .......................8-9
8.5.3
Controlling the Communications Mode and Handshaking ......................................8-11
8.5.4
Enabling the SSIO Interrupts ..................................................................................8-13
8.5.5
Determining SSIO Port Status ................................................................................8-13
8.6
PROGRAMMING CONSIDERATIONS........................................................................ 8-13
8.7
PROGRAMMING EXAMPLE ....................................................................................... 8-15
CHAPTER 9
9.1
SLAVE PORT FUNCTIONAL OVERVIEW .................................................................... 9-2
9.2
SLAVE PORT SIGNALS AND REGISTERS ................................................................. 9-2
9.3
HARDWARE CONNECTIONS ...................................................................................... 9-6
9.4
SLAVE PORT MODES .................................................................................................. 9-8
9.4.1
Standard Slave Mode Example ................................................................................9-8
9.4.1.1
Master Device Program .......................................................................................9-8
9.4.1.2
Slave Device Program .........................................................................................9-9
9.4.1.3
Demultiplexed Bus Timings ................................................................................9-10
9.4.2
Shared Memory Mode Example ..............................................................................9-11
9.4.2.1
Master Device Program .....................................................................................9-11
9.4.2.2
Slave Device Program .......................................................................................9-12
9.4.2.3
Multiplexed Bus Timings ....................................................................................9-13
9.5
CONFIGURING THE SLAVE PORT............................................................................ 9-14
9.5.1
Programming the Slave Port Control Register (SLP_CON) ....................................9-14
9.5.2
Enabling the Slave Port Interrupts ..........................................................................9-16
9.6
DETERMINING SLAVE PORT STATUS ..................................................................... 9-16
9.7
USING STATUS BITS TO SYNCHRONIZE MASTER AND SLAVE ........................... 9-16
CHAPTER 10
10.1
EPA FUNCTIONAL OVERVIEW ................................................................................. 10-1
10.2
EPA AND TIMER/COUNTER SIGNALS AND REGISTERS ....................................... 10-2
10.3
TIMER/COUNTER FUNCTIONAL OVERVIEW........................................................... 10-6
10.3.1
Cascade Mode (Timer 2 Only) ................................................................................10-7
viii
Advertisement
Table of Contents
