Texas Instruments TMS320F20x/F24x DSP manual 1.2 TMS320F20x/F24x Flash Module, Preliminary

PRELIMINARY

TMS320F20x/F24x Flash Module

1.2 TMS320F20x/F24x Flash Module

The 'F20x/F24x flash EEPROM is implemented with one or two independent flash memory modules of 8K or 16K words. Each flash module is composed of a flash memory array, four control registers, and circuitry that produces ana- log voltages for programming and erasing. The flash array size of the TMS320F206 and TMS320F240 is 16K ×16 bits, while the TMS320F241 and TMS320F243 incorporate an 8K × 16-bit flash array (see Table 1±1). Unlike most discrete flash memories, the 'F20x/F24x flash module does not require a dedicated state machine, because the algorithms for programming and eras- ing the flash are executed in software by the DSP core. The use of these so- phisticated, adaptive programming algorithms results in reduced chip size and greater programming flexibility. In addition, the application code can manage the use of the flash memory without the requirement of external programming equipment.

Table 1±1. TMS320 Devices With On-Chip Flash EEPROM

Device	Array Size	Total Flash Memory
TMS320F206	16K	32K²
TMS320F240	16K	16K
TMS320F241	8K	8K
TMS320F243	8K	8K

²Each array can be independently erased.

PRELIMINARY

Introduction 1-3