Application Processors Limit Function Expansion Inexpensive application processors

Application Processors Limit Function Expansion • Inexpensive application processors (APs) and MCUs have limited IO • ASIC IOs are an expensive and risky option to expand • Additional peripheral functions are a common feature upgrade Additional Functions IO Constrained Processor MCU / Application / Baseband Processor LEDs Bluetooth Peripheral Control GPS FM Other I 2 C, SPI, parallel, etc isp. MACH 4000 Family CPLDs Wi. Fi Page: 1 Lattice Semiconductor Confidential

Lattice PLD for Flexible LED Drive Interfacing • Lattice PLD is the host for popular on-board interfaces (I 2 C, SPI, local bus, proprietary, etc) • Best IO density for price • Integrates voltage level shifting and glue logic Backlight / Contrast Control ASIC or ASSP Peripheral Interface Lattice PLD Voltage Level Shift Slave Interface Serial Interface GPIO Expansion Serial Bus Driver Constant Current LED Drive IC I 2 C, SPI or Proprietary Interface isp. MACH 4000 Family CPLDs Page: 2 Lattice Semiconductor Confidential

Proposed LED driver eval board with Lattice PLD • Lattice PLD is the host for popular interfaces (I 2 C, SPI, local bus, proprietary, etc) • Customer could program PLD with their own interface to test LED driver and/or Lattice could supply example program files for I 2 C & SPI and typical 59401 i/f • This board allows a customer to implement many LED interfaces for TLC 59401 or other Could daisy chain to another board or have more LED drivers Lattice PLD Could be one or several connectors / headers isp. MACH 4000 Family CPLDs On board Oscillator for default timing GPIO Expansion I 2 C, SPI or other i/f Serial Bus Driver Page: 3 Serial Interface TLC 59401 LED Drive IC Lattice Semiconductor Confidential