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SH79F085M/024MU Datasheet(PDF) 21 Page - SINOWEALTH Electronic Ltd |
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SH79F085M/024MU Datasheet(HTML) 21 Page - SINOWEALTH Electronic Ltd |
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21 / 97 page  SH79F085/SH79F165 21 7.4 SSP Function The SH79F085/SH79F165 provides SSP (Self Sector Programming) function, each sector can be sector erased (except the last sector, sector 15) or programmed by the user’s code if the selected sector is not be protected. But once sector has been programmed, it cannot be reprogrammed before sector erase. The SH79F085/SH79F165 builds in a complex control flow to prevent the code from carelessly modification. If the dedicated conditions are not met (IB_CON2-5), the SSP will be terminated. 7.4.1 SSP Register Table 7.4 Offset Register for Programming F7H Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 XPAGE XPAGE.7 XPAGE.6 XPAGE.5 XPAGE.4 XPAGE.3 XPAGE.2 XPAGE.1 XPAGE.0 R/W R/W R/W R/W R/W R/W R/W R/W R/W Reset Value (POR/WDT/LVR/PIN) 0 0 0 0 0 0 0 0 Flash memory, one sector is 1024 bytes Bit Number Bit Mnemonic Description 5-2 XPAGE[5:2] Sector of the flash memory to be programmed, 0000 means sector 0, and so on 1-0 XPAGE[1:0] High Address of Offset of the flash memory sector to be programmed EEPROM-like memory, one sector is 256 bytes, total 2 sectors Bit Number Bit Mnemonic Description 7-1 XPAGE[7:1] Reserved 0 XPAGE.0 Sector of the flash memory to be programmed 0: sector0 1: sector1 Table 7.5 Offset of Flash Memory for Programming FBH Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 IB_OFFSET IB_OFF SET.7 IB_OFF SET.6 IB_OFF SET.5 IB_OFF SET.4 IB_OFF SET.3 IB_OFF SET.2 IB_OFF SET.1 IB_OFF SET.0 R/W R/W R/W R/W R/W R/W R/W R/W R/W Reset Value (POR/WDT/LVR/PIN) 0 0 0 0 0 0 0 0 Bit Number Bit Mnemonic Description 7-0 IB_OFFSET[7:0] Low Address of Offset of the flash memory sector to be programmed Table 7.6 Data Register for Programming FCH Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 IB_DATA IB_DATA.7 IB_DATA.6 IB_DATA.5 IB_DATA.4 IB_DATA.3 IB_DATA.2 IB_DATA.1 IB_DATA.0 R/W R/W R/W R/W R/W R/W R/W R/W R/W Reset Value (POR/WDT/LVR/PIN) 0 0 0 0 0 0 0 0 Bit Number Bit Mnemonic Description 7-0 IB_DATA[7:0] Data to be programmed |
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