CS7410 datasheet(22/39 Pages) CIRRUS

22 / 39 page

CS7410

DS553PP1

sor communication

•

Three 32-bit timers for I/O and other uses, with

programmable interval rates

•

“Getbits” module accelerates peripheral stream

parsing

•

Both hardware and software interrupts on data

or debug

2.2.4

Memory System

•

Large internal SRAM (80 Kbyte) and internal

program ROM (256 Kbyte)

•

Supports both Synchronous and EDO DRAM

(256 KBytes to 8 MBytes) for ESP

•

Supports one bank of FLASH and ROM (up to

2 MBytes) for nonvolatile storage

•

4-, 8-, or16-bit data bus for DRAM, 8-bit data

bus for ROM

2.2.5

CD Interface

•

Glueless interfaces to CD servo chip set, sup-

porting all standard CD formats

•

Includes pattern matching hardware to support

fast ESP recovery

2.2.6

Audio Interface

•

Supports 4 channels PCM, I2S connectivity at

up to 24 bits

•

Flexible audio clocking scheme using internal

PLL and dividers, or external pins

•

Simultaneous IEC-958 output with program-

mable channel status and user data

•

Integrated sigma-delta (

∆Σ) stereo audio mod-

ulator

2.2.7

External Interface

•

2-wire serial slave port, used for debug

•

3- or 4-wire synchronous serial master/slave

port for external controller or slave peripheral

•

Separate synchronous serial master port opti-

mized for receiving CD sub-codes

•

Up to 29 programmable bi-directional I/O

(GPIO) and up to 9 output only (GPO) pins

(some multiplexed with other peripherals)

•

All pins defined as GPIOs can be used to re-

ceive edge or level detection interrupts.

•

Pulse-width modulated (PWM) output pin can

be used to create simple ADC using low-cost

comparator (i.e., for battery voltage monitor)

2.2.8

System Functions

•

Internal oscillator uses external crystal, or re-

ceives clock (i.e. 16.9 MHz) from CD servo

•

Internal PLL generates any system clock fre-

quency, chip can run up to 90 MHz

•

Includes clock divider and clock shutoff cir-

cuits for low power/sleep modes

•

Advanced 0.18 micron CMOS technology,

runs off 1.8 V and 3.3 V

•

All I/O pins are 3.3 V, with 5 V tolerance

•

100-pin MQFP package

•

100-pin LQFP package

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