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TMP86F808DNG Datasheet(PDF) 8 Page - Toshiba Semiconductor |
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TMP86F808DNG Datasheet(HTML) 8 Page - Toshiba Semiconductor |
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8 / 34 page  86F808-8 2007-08-07 TMP86F808 2. Serial PROM Mode 2.1 Outline The TMP86F808 has a 2-Kbyte BOOT ROM for programming to flash memory. This BOOT ROM is a mask ROM that contains a program to write the flash memory on-board. The BOOT ROM is available in a serial PROM mode and it is controlled by TEST pin and RESET pin and 2 I/O pins, and is communicated with UART. There are four operation modes in a serial PROM mode: flash memory writing mode, RAM loader mode, flash memory SUM output mode and product discrimination code output mode. Operating area of serial PROM mode differs from that of MCU mode. The operating area of serial PROM mode shows in Table 2.1.1. Table 2.1.1 Operating Area of Serial PROM Mode 2.2 Memory Mapping The BOOT ROM is mapped in address F800H to FFFFH. The BOOT ROM can’t be accessed in MCU mode. The Figure 2.2.1 shows a memory mapping. Figure 2.2.1 Memory Address Maps Parameter Symbol Min Max Unit Operating voltage VDD 4.5 5.5 V High frequency fc 2, 4, 8, 16 MHz Temperature Topr 25 ± 5 °C 0000H E000H FFFFH 64 bytes 256 bytes 8192 bytes 64 bytes 256 bytes 2048 bytes 003FH 0040H 013FH SFR RAM Flash memory MCU mode 0000H F800H FFFFH 003FH 0040H 013FH SFR RAM BOOT ROM Serial PROM mode |
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