1.0 general description
the fm8pu86 is an 8-bit microprocessor embedded device tailored to the usb application. it includes an 8-bit risc cpu core, 192~256 byte sram, full speed and low speed usb interface and a 6k x 14 internal program otp-rom.
2.0 features
support full-speed and low-speed usb 1.1 specification built-in usb transceiver and 3.3v regulator support usb suspend and resume function one control in/out , two int endpoints and two bulk endpoints support ps2 compatible interface share with usb interface 192 bytes internal sram in bulk mode;256(192+64) bytes internal sram in int mode. 6k x 14 internal program otp-rom 8-bit risc cpu core . support master/slave spi serial communication interface support up to four user configured endpoints
¾ up to three 8-byte data endpoints (ep0,ep1,ep2)
¾ up to two 32-byte data endpoints (ep3,ep4)
internal oscillator ¾ internal +/-4% 24mhz oscillator ¾ 0.25% accuracy for usb without extra component
built-in programming pll for external oscillator or crystal. general-purpose programmable-level io interface 5v power supply only; gpio support 1.8v~5v interface. support ssc to reduce emi