Technical Summary, Rev. 3
Freescale Semiconductor
2-1
Chapter 2
Technical Summary
The 56858EVM is designed as a versatile controller development card for developing real-time
software and hardware products to support a new generation of applications in digital and
wireless messaging, digital answering machines, feature phones, modems, and digital cameras.
The power of the 16-bit 56858 controller, combined with the on-board 128K
u
16-bit external
program/data static RAM (SRAM), 128K
u
16-bit external data/program SRAM, RS-232
interface, Stereo 16-bit codec interface, USB 2.0 interface, Daughter Card Expansion interface
and parallel JTAG interface, makes the 56858EVM ideal for developing and implementing many
audio and voice algorithms, as well as for learning the architecture and instruction set of the
56858 processor.
The main features of the 56858EVM, with board and schematic reference designators include:
•
56858 16-bit +1.8V/+3.3V Digital Signal Processor operating at 120MHz [U1]
•
External fast static RAM (FSRAM) memory, configured as:
— 128K
u
16-bit of memory [U2] with one wait state at 120MHz via CS0
— 128K
u
16-bit of memory [U3] with one wait state at 120MHz via CS1/CS2
•
1M-bit Serial EEPROM/Data FLASH [U4]
•
4.00MHz crystal oscillator for controller frequency generation [Y1]
•
Optional external oscillator frequency input connectors [JG3 and JG4]
•
Joint Test Action Group (JTAG) port interface connector for an external debug Host
Target Interface [J3]
•
On-board Parallel JTAG Host Target Interface, with a connector for a PC printer port
cable [P1]
•
RS-232 interface for easy connection to a host processor [U5 and P3]
•
16-bit stereo codec interface [U6, JG6, JG7, P4 and P5]
•
Stereo headphone interface [U8 and P6]
•
Codec sample rate selector [S5]
Содержание 56858
Страница 2: ......
Страница 6: ...DSP56858EVM User Manual Rev 3 iv Freescale Semiconductor ...
Страница 8: ...DSP56858EVM User Manual Rev 3 vi Freescale Semiconductor ...
Страница 40: ...DSP56858EVM User Manual Rev 3 2 24 Freescale Semiconductor ...
Страница 41: ...56858EVM Schematics Rev 3 Freescale Semiconductor Appendix A 1 Appendix A 56858EVM Schematics ...
Страница 59: ......