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TMP89FS60 Datasheet(PDF) 348 Page - Toshiba Semiconductor |
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TMP89FS60 Datasheet(HTML) 348 Page - Toshiba Semiconductor |
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348 / 410 page  Page 334 22. Serial PROM Mode 22.7 Memory Mapping TMP89FS60 RA002 22.7 Memory Mapping Figure 22-3 shows memory maps in serial PROM and MCU modes. In serial PROM mode, the BOOTROM (mask ROM) is mapped to the 0x1000 through 0x17FF in the data area and 0x1000 through 0x1FFF in the code area respectively. To write data to or erase data from flash memory by using the RAM loader command (hereafter called the 0x60 command) and an original program, data write or erase operations must be performed while switching between areas by using the flash memory control registers (FLSCR1 and 2). For information on how to specify addresses, refer to Flash Memory. When the command to write data to flash memory (hereafter called the 0x30 command) or the command to erase data from flash memory (hereafter called the 0xF0 command) is executed, BOOTROM automatically converts addresses. Therefore, as the address of flash memory, specify an address equivalent to that specified in MCU mode (if FLSCR1<BAREA>="0"), namely, 0x1000 through 0xFFFF. Figure 22-3 Memory Mapping 22.8 Operation Commands In serial PROM mode, the commands shown in Table 22-5 are used. After a reset is released, the TMP89FS60 goes into a standby state and awaits the arrival of matching data 1 (0x86 or 0x30). 0xFFFF 0x1000 0x0000 0xFFFF 0x1000 0x0000 Data area If FLSCR1<BAREA>=”0” (MCU mode) Code area 0x003F 0x0040 0xFFFF Data area If FLSCR1<BAREA>=”1” (MCU mode) Code area 0x003F 0x0000 0x0040 0x1800 0x17FF 0x1000 0xFFFF 0x0000 0x1800 0x17FF 0x1000 0xFFFF 0x003F 0x0000 0x0040 0x1800 0x17FF 0x1000 0xFFFF 0x0000 0x2000 0x1FFF 0x1000 BOOTROM (2048 bytes) BOOTROM (2048 bytes) BOOTROM (2048 bytes) BOOTROM (4096 bytes) FLASH SFR RAM RAM SFR SFR FLASH FLASH FLASH FLASH FLASH RAM If serial PROM mode Data area Code area |
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