Cirrus-logic CRD5376 Manual do Utilizador descarregar pdf (Página 22)

CRD5376

22 DS612RD2

CRD5376, as an input from the microcontroller to initiate data transactions on command or from the

MCLK/2 clock to initiate data transactions automatically as soon as they are available from the digital filter.

2.3.2 Microcontroller

Included on CRD5376 is an 8051-type microcontroller with integrated hardware SPI and USB interfaces.

This C8051F320 microcontroller is a product of Silicon Laboratories (http://www.silabs.com/). Key fea-

tures of the C8051F320 microcontroller are:

8051 compatibility - uses industry standard 8051 software development tools

In-circuit debugger - software development on the target hardware

Internal memory - 16k flash ROM and 2k static RAM included on-chip

Multiple serial connections - SPI, USB, I2C, and UART

High performance - 25 MIPS maximum

Low power - 0.6 mA @ 1 MHz w/o USB, 9 mA @ 12 MHz with USB

Small size - 32 pin LQFP package, 9mm x 9mm

Industrial temperature - full performance (including USB) from -40 C to +85 C

Internal temperature sensor - with range violation interrupt capability

Internal timers - four general purpose plus one extended capability

Power on reset - can supply a reset signal to external devices

Analog ADC - 10 bit, 200 ksps SAR with internal voltage reference

Analog comparators - arbitrary high/low voltage compare with interrupt capability

The exact use of the microcontroller features is controlled by embedded firmware.

CS5376A uController MCLK/2

SDTKI R74 R83

Table 7. SDTKI Input Jumper Settings

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 67 68

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