Texas Instruments TMS320C3x - Manual (Page 380)

12-1
Peripherals
The ’C3x features two timers, a serial port (two serial ports for the ’C30), and
an on-chip direct memory access (DMA) controller (2-channel DMA controller
on the ’C32). These peripheral modules are controlled through memory-
mapped registers located on the dedicated peripheral bus.
The DMA controller performs input/output operations without interfering with
the operation of the CPU, making it possible to interface the ’C3x to slow, exter-
nal memories and peripherals, analog-to-digital converters (A/Ds), serial
ports, and so forth, without reducing the computational throughput of the CPU.
The result is improved system performance and decreased system cost.
Topic Page
12.1 Timers 12-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.2 Serial Ports 12-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.3 DMA Controller 12-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 12