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TMP86FS27FG Datasheet(PDF) 8 Page - Toshiba Semiconductor |
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TMP86FS27FG Datasheet(HTML) 8 Page - Toshiba Semiconductor |
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8 / 32 page  86FS27-8 2007-08-07 TMP86FS27 2. Serial PROM Mode 2.1 Outline The TMP86FS27 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 P00 and P01 pin, 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 64 bytes 61440 bytes SFR RAM 1024 bytes 128 bytes 0000H 003FH 0040H 0423H 0F80H 0FFFH 1000H FFFFH Flash memory DBR MCU 64 bytes 2048 bytes SFR RAM 1024 bytes 0000H 003FH 0040H 0423H F800H FFFFH BOOT ROM Serial PROM mode |
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