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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ADE7166 датащи(PDF) 111 Page - Analog Devices |
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ADE7166 датащи(HTML) 111 Page - Analog Devices |
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111 / 152 page  ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569 Rev. B | Page 111 of 1 52 Table 106. Flash Write/Erase Protection 0 SFR (PROTB0, Address 0xBD) Bit Mnemonic Default Description [7:0] PROTB0 0xFF This SFR is used to write the write/erase protection bits for Page 0 to Page 7 of the flash memory (see the Protecting the Flash section). Clearing the bits enables the protection. PROTB0.7 PROTB0.6 PROTB0.5 PROTB0.4 PROTB0.3 PROTB0.2 PROTB0.1 PROTB0.0 Page 7 Page 6 Page 5 Page 4 Page 3 Page 2 Page 1 Page 0 Table 107. Flash Write/Erase Protection 1 SFR (PROTB1, Address 0xBE) Bit Mnemonic Default Description [7:0] PROTB1 0xFF This SFR is used to write the write/erase protection bits for Page 8 to Page 15 of the flash memory (see the Protecting the Flash section). Clearing the bits enables the protection. PROTB1.7 PROTB1.6 PROTB1.5 PROTB1.4 PROTB1.3 PROTB1.2 PROTB1.1 PROTB1.0 Page 15 Page 14 Page 13 Page 12 Page 11 Page 10 Page 9 Page 8 Table 108. Flash Read Protection SFR (PROTR, Address 0xBF) Bit Mnemonic Default Description [7:0] PROTR 0xFF This SFR is used to write the read protection bits for Page 0 to Page 31 of the flash memory (see the Protecting the Flash section). Clearing the bits enables the protection. PROTR.7 PROTR.6 PROTR.5 PROTR.4 PROTR.3 PROTR.2 PROTR.1 PROTR.0 Page 28 to Page 31 Page 24 to Page 27 Page 20 to Page 23 Page 16 to Page 19 Page 12 to Page 15 Page 8 to Page 11 Page 4 to Page 7 Page 0 to Page 3 Table 109. Flash Low Byte Address SFR (EADRL, Address 0xC6) Bit Mnemonic Default Description [7:0] EADRL 0 Flash pointer low byte address. This SFR is also used to write the write/erase protection bits for Page 16 to Page 23 of the flash memory (see the Protecting the Flash section). Clearing the bits enables the protection. EADRL.7 EADRL.6 EADRL.5 EADRL.4 EADRL.3 EADRL.2 EADRL.1 EADRL.0 Page 23 Page 22 Page 21 Page 20 Page 19 Page 18 Page 17 Page 16 Table 110. Flash High Byte Address SFR (EADRH, Address 0xC7) Bit Mnemonic Default Description [7:0] EADRH 0 Flash Pointer High Byte Address. This SFR is also used to write the write/erase protection bits for Page 24 to Page 31 of the flash memory (see the Protecting the Flash section). Clearing the bits enables the protection. EADRH.7 EADRH.6 EADRH.5 EADRH.4 EADRH.3 EADRH.2 EADRH.1 EADRH.0 Page 31 Page 30 Page 29 Page 28 Page 27 Page 26 Page 25 Page 24 Flash Functions The following sample 8052 code is provided to demonstrate how to use the flash functions. For these examples, Flash Memory Byte 0x3C00 is accessed. Write Byte Write 0xF3 into flash memory byte 0x3C00. MOV EDATA,#F3h ; Data to be written MOV EADRH,#3Ch ; Set up byte address MOV EADRL,#00h MOV FLSHKY,#3Bh ; Write Flash security key. MOV ECON,#01h ; Write Byte Erase Page Erase the page containing Flash Memory Byte 0x3C00. MOV EADRH,#3Ch ; Select page through byte address MOV EADRL,#00h MOV FLSHKY,#3Bh ; Write Flash security key. MOV ECON,#02h ; Erase Page |
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