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IS25WD020-JBLE Datasheet(PDF) 6 Page - Integrated Silicon Solution, Inc |
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IS25WD020-JBLE Datasheet(HTML) 6 Page - Integrated Silicon Solution, Inc |
6 / 35 page IS25WD020/040 Integrated Silicon Solution, Inc.- www.issi.com Rev. F 07/31/2013 6 SYSTEM CONFIGURATION The IS25WD020/040 devices are designed to interface directly with the synchronous Serial Peripheral Interface (SPI) of the Motorola MC68HCxx series of microcontrollers or any SPI interface-equipped system controllers. The devices have two superset features that can be enabled through specific software instructions and the Configuration Register: Table 1 illustrates the memory map of the devices. The Configuration Register controls how the memory is mapped. BLOCK/SECTOR ADDRESSES Table 1. Block/Sector Addresses of IS25WD020/040 Memory Density Block No. Block Size (Kbytes) Sector No. Sector Size (Kbytes) Address Range 4 Mbit 2 Mbit Block 0 64 Sector 0 4 000000h – 000FFFh Sector 1 4 001000h – 001FFFh : : : Sector 15 4 00F000h – 00FFFFh Block 1 64 Sector 16 4 010000h – 010FFFh Sector 17 4 011000h – 011FFFh : : : Sector 31 4 01F000h – 01FFFFh : : : : : Block 3 64 : 4 030000h – 03FFFFh Block 4 64 : 4 040000h – 04FFFFh : : : : : : : : : : Block 7 64 : 4 070000h – 07FFFFh |
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