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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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M50FW040 데이터시트(PDF) 20 Page - STMicroelectronics |
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M50FW040 데이터시트(HTML) 20 Page - STMicroelectronics |
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20 / 41 page  M50FW040 20/41 Table 9. Firmware Hub Register Configuration Map Table 10. Lock Register Bit Definitions Note: 1. Applies to Top Block Lock Register (T_BLOCK_LK) and Top Block [-1] Lock Register (T_MINUS01_LK) to Top Block [-7] Lock Reg- ister (T_MINUS07_LK). Table 11. General Purpose Inputs Register Definition Note: 1. Applies to the General Purpose Inputs Register (FGPI-REG). Mnemonic Register Name Memory Address Default Value Access T_BLOCK_LK Top Block Lock Register (Block 7) FBF0002h 01h R/W T_MINUS01_LK Top Block [-1] Lock Register (Block 6) FBE0002h 01h R/W T_MINUS02_LK Top Block [-2] Lock Register (Block 5) FBD0002h 01h R/W T_MINUS03_LK Top Block [-3] Lock Register (Block 4) FBC0002h 01h R/W T_MINUS04_LK Top Block [-4] Lock Register (Block 3) FBB0002h 01h R/W T_MINUS05_LK Top Block [-5] Lock Register (Block 2) FBA0002h 01h R/W T_MINUS06_LK Top Block [-6] Lock Register (Block 1) FB90002h 01h R/W T_MINUS07_LK Top Block [-7] Lock Register (Block 0) FB80002h 01h R/W FGPI_REG Firmware Hub (FWH) General Purpose Input Register FBC0100h N/A R MANUF_REG Manufacturer Code Register FBC0000h 20h R DEV_REG Device Code Register FBC0001h 2Ch R Bit Bit Name Value Function 7-3 Reserved 2 Read-Lock ‘1’ Bus Read operations in this Block always return 00h. ‘0’ Bus read operations in this Block return the Memory Array contents. (Default value). 1 Lock-Down ‘1’ Changes to the Read-Lock bit and the Write-Lock bit cannot be performed. Once a ‘1’ is written to the Lock-Down bit it cannot be cleared to ‘0’; the bit is always reset to ‘0’ following a Reset (using RP or INIT) or after power-up. ‘0’ Read-Lock and Write-Lock can be changed by writing new values to them. (Default value). 0 Write-Lock ‘1’ Program and Erase operations in this Block will set an error in the Status Register. The memory contents will not be changed. (Default value). ‘0’ Program and Erase operations in this Block are executed and will modify the Block contents. Bit Bit Name Value Function 7-5 Reserved 4 FGPI4 ‘1’ Input Pin FGPI4 is at VIH ‘0’ Input Pin FGPI4 is at VIL 3 FGPI3 ‘1’ Input Pin FGPI3 is at VIH ‘0’ Input Pin FGPI3 is at VIL 2 FGPI2 ‘1’ Input Pin FGPI2 is at VIH ‘0’ Input Pin FGPI2 is at VIL 1 FGPI1 ‘1’ Input Pin FGPI1 is at VIH ‘0’ Input Pin FGPI1 is at VIL 0 FGPI0 ‘1’ Input Pin FGPI0 is at VIH ‘0’ Input Pin FGPI0 is at VIL |
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