SPCA514A

SPCA514A Digital Audio USB Controller 1. General description The chip provides a built-in 8051 CPU with USB interface to handle three types of flash memory: NAND-type, SPI and NextFlash. It can co-operate with Digital Audio processing chip to manage the flash memory and to communicate with the PC. 2. Feature ! ! ! ! ! ! ! ! Build-in 8032 micro-controller and 1K bytes Data RAM Support USB bus with built-in transceiver Four USB pipes supported, including default control pipe, bulk-in pipe, bulk-out pipe and interrupt pipe Support 2M / 4M / 8M x 8 bit NAND-type Flash memory Hardware generated ECC code for flash memory access Support SPI and NextFlash serial interface Support SPCA751 interface 100-pin LQFP
          SPCA514A 3. Function description 3.1. block diagram USB and Flash meory Controller with 8051 xp0[7:0] xp1[7:0] xp2[7:0] Control Signals xsgpio[7:0] xp3[7:0] xpsenn xale Control Signals SPI Controller Status Signals Data Bus Data Bus 8051 CPU Status Signals Data Bus Data Bus 751 Interface xmgpio[7:0] Control Signals Address Bus cpuintnn CPU Data Bus xdp xdm Control Signals Control Signals Status Signals Status Signals FM Controller xngpio[7:0] Flash Memory (NAND Type) USB Controller Data Bus xugpio[7:0] Data Bus FIFO Controller Control Signals Control Signals Data Bus Data Bus Data Bus xegpio[7:0] xtalout xtalin xprstnn VCC (8) GND (8) Data Bus A Buffer (512x8) B Buffer (512x8) use...