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MB90F438LPF Datasheet(PDF) 20 Page - Cypress Semiconductor

Part # MB90F438LPF
Description  16-bit Proprietary Microcontroller
PDF  61 Pages
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

MB90F438LPF Datasheet(HTML) 20 Page - Cypress Semiconductor

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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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