Programming Sheets

Application:

 

 

Date:

 

 

 

 

 

Programmer:

 

Sheet 2 of 2

SCI

TCM

RCM

TX Clock

RX Clock

SCLK Pin

 

Mode

0

0

Internal

Internal

Output

Synchronous/Asynchronous

0

1

Internal

External

Input

Asynchronous only

1

0

External

Internal

Input

Asynchronous only

1

1

External

External

Input

Synchronous/Asynchronous

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transmitter Clock Mode/Source

 

Receiver Clock Mode/Source

0

= Internal clock for Transmitter

 

0

= Internal clock for Receiver

1

= External clock from SCLK

 

1

= External clock from SCLK

Clock Divider Bits (CD11–CD0)

CD11–CD0

I cyc Rate

$000

Icyc/1

$001

Icyc/2

$002

Icyc/3

$FFE

Icyc/4095

$FFF

Icyc/4096

 

 

 

Clock Out Divider

 

0

= Divide clock by 16 before feed to SCLK

 

1

= Feed clock to directly to SCLK

 

 

 

 

 

 

 

SCI Clock Prescaler

 

 

0 = ÷1

1 = ÷ 8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

 

15

14

13

12

 

11

10

9

8

 

7

6

5

4

 

3

2

1

0

 

 

 

*0

 

 

TCM

RCM

SCP

COD

 

CD11

CD10

CD9

CD8

 

CD7

CD6

CD5

CD4

 

CD3

CD2

CD1

CD0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCI Clock Control Register (SCCR)

 

Address X:$FFFF9B Read/Write

Reset = $000000

*= Reserved, Program as 0

Figure B-24.SCI Clock Control Registers (SCCR)

B-36

DSP56301 User’s Manual

Page 348
Image 348
Motorola DSP56301 user manual SCI Clock Control Register Sccr Address X$FFFF9B Read/Write, Receiver Clock Mode/Source

DSP56301 specifications

The Motorola DSP56301 is a highly efficient digital signal processor, specifically engineered for real-time audio and speech processing applications. This DSP is part of Motorola's renowned DSP56300 family, which is recognized for its innovative features and outstanding performance in the realm of digital signal processing.

One of the main features of the DSP56301 is its ability to handle complex computations at high speeds. With a maximum clock frequency of 66 MHz, it delivers fast performance, enabling it to process audio signals in real time. The chip is built on a 24-bit architecture, which allows for high-resolution audio processing. This is particularly beneficial in applications such as telecommunications, consumer audio devices, and professional audio equipment, where precision is paramount.

The DSP56301 boasts a comprehensive instruction set that includes efficient mathematical operations, which are essential for digital filters and audio effects processing. One of the key innovations of this device is its dual data path architecture, which permits simultaneous processing of multiple data streams. This feature significantly enhances the device's throughput and responsiveness, making it suitable for demanding applications such as voice recognition and synthesis.

In terms of memory regions, the DSP56301 includes several on-chip memory categories, such as program memory, data memory, and a specialized memory for coefficients. The architecture's support for external memory expansion further increases its versatility, allowing designers to tailor systems to their specific requirements.

The DSP56301 implements advanced features such as a powerful on-chip hardware multiplier and accumulator, simplifying complex mathematical tasks and accelerating the execution of algorithms. Its flexible interrupt system enhances its capability to respond to time-sensitive operations, while the integrated serial ports facilitate efficient data communication with external devices.

Power consumption is also a vital characteristic of the DSP56301. It is designed with energy efficiency in mind, allowing for extended operation in battery-powered devices. The chip’s low power requirements are particularly advantageous in portable audio devices and other applications where energy conservation is crucial.

In conclusion, the Motorola DSP56301 is an exceptional digital signal processor that combines high processing power, flexibility, and efficiency. Its main features, advanced technologies, and robust architecture make it a top choice for developers seeking to create sophisticated audio and signal processing systems. With its enduring legacy in the industry, the DSP56301 continues to be relevant in a variety of modern applications, ensuring it remains a valuable tool for engineers and designers.