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8-1
On-Chip Peripherals
On-Chip Peripherals
This chapter discusses on-chip peripherals connected to the ’C2xx CPU and
their control registers. The on-chip peripherals are controlled through
memory-mapped registers. The operations of the timer and the serial ports are
synchronized to the processor through interrupts and interrupt polling. The
’C2xx on-chip peripherals are:
Clock generator
Timer
Software-programmable wait-state generator
General-purpose I/O pins
Synchronous serial port (SSP)
Asynchronous serial port (ASP), or UART
The serial ports are discussed in Chapter 9 and Chapter 10.
For examples of program code for the on-chip peripherals, see Appendix C,
Program Examples
.
Topic Page
8.1 Control of On-Chip Peripherals 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2 Clock Generator 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.3 CLKOUT1-Pin Control (CLK) Register 8-7. . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4 Timer 8-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.5 Wait-State Generator 8-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.6 General-Purpose I/O Pins 8-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 8