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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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MB90F438LPF Arkusz danych(PDF) 20 Page - Cypress Semiconductor |
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MB90F438LPF Arkusz danych(HTML) 20 Page - Cypress Semiconductor |
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20 / 61 page  MB90435 Series DS07-13727-2E 19 ■ MEMORY MAP The memory space of the MB90435 Series is shown below. Note : The high-order portion of bank 00 gives the image of the FF bank ROM to make the small model of the C compiler effective. Since the low-order 16 bits address are the same, the table in ROM can be referenced without using the “far” specification in the pointer declaration. For example, an attempt to access 00C000H accesses the value at FFC000H in ROM.The ROM area in bank FF exceeds 48 Kbytes, and its entire image cannot be shown in bank 00.The image between FF4000H and FFFFFFH is visible in bank 00, while the image between FF0000H and FF3FFFH is visible only in bank FF. MB90V540G FFFFFFH FEFFFFH FF0000H FDFFFFH FE0000H FCFFFFH FD0000H 00FFFFH 004000H 003FFFH 003900H 0020FFH 001FF5H 001FF0H 000100H 0000BFH 000000H FC0000H ROM (FF bank) ROM (FE bank) ROM (FD bank) ROM (FC bank) External ROM (Image of FF bank) Peripheral External RAM 8 K External Peripheral ROM correction MB90F438L (S)/438L (S) FFFFFFH FEFFFFH FF0000H FE0000H 00FFFFH 004000H 003FFFH 003900H 002000H 0010FFH 000100H 0000BFH 000000H ROM (FF bank) ROM (FE bank) External ROM (Image of FF bank) Peripheral External RAM 4 K External Peripheral MB90F439 (S) /439 (S) FDFFFFH FCFFFFH FD0000H FC0000H ROM (FD bank) ROM (FC bank) FFFFFFH FEFFFFH FF0000H FE0000H 00FFFFH 004000H 003FFFH 003900H 002100H 0018FFH 000100H 0000BFH 000000H ROM (FF bank) ROM (FE bank) External ROM (Image of FF bank) Peripheral External RAM 6 K External Peripheral FFFFFFH FF0000H 00FFFFH 004000H 003FFFH 003900H 002000H 0008FFH 000100H 0000BFH ROM (FF bank) ROM (Image of FF bank) Peripheral External RAM 2 K External Peripheral MB90F437L (S) 000000H External |
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