Sci Programming Model - Motorola DSP56305 User Manual

8.3

SCI PROGRAMMING MODEL

The SCI programming model can be viewed as three types of registers:
• Control
– SCI Control Register (SCR) in Figure 8-1
– SCI Clock Control Register (SCCR) in Figure 8-3
• Status
– SCI Status Register (SSR) in Figure 8-2
• Data transfer
– SCI Receive Data Registers (SRX) in Figure 8-8
– SCI Transmit Data Registers (STX) in Figure 8-8
– SCI Transmit Data Address Register (STXA) in Figure 8-8
The SCI also contains GPIO functionality, as described in Section 8.5.
The following paragraphs describe each bit in the programming model.
MOTOROLA DSP56305 User's Manual
Serial Communication Interface (SCI)
SCI Programming Model
8-5