C8051F581-IMR Silicon Labs, C8051F581-IMR Datasheet - Page 103
C8051F581-IMR
Manufacturer Part Number
C8051F581-IMR
Description
8-bit Microcontrollers - MCU 50MIPS 128kB 8kB SPI
Manufacturer
Silicon Labs
Datasheet
1.C8051F585-IQR.pdf
(356 pages)
Specifications of C8051F581-IMR
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
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The IFBANK bits select which of the upper banks are used for code execution, while the COBANK bits
select the bank to be used for direct writes and reads of the Flash memory. On the C8051F580/1/2/3/8/9
devices, the upper 1024 bytes of the memory in Bank 3 (0xFC00 to 0xFFFF) are reserved and are not
available for user program or data storage.
Figure 12.2 show the Flash as a consecutive block of address space using a 17-bit address to illustrate the
location of the lock byte, lock byte page and reserved space.
(128 kB Flash Device)
Flash Memory Space
C8051F580/1/2/3/8/9
Lock Byte Page
Reserved Area
Lock Byte
Figure 12.3. Address Memory Map for Instruction Fetches
Address
0xFFFF
0x7FFF
Internal
0x8000
0x0000
Figure 12.2. Flash Program Memory Map
IFBANK = 0
Bank 0
Bank 0
0x1FFFF
0x1FC00
0x1FBFF
0x1FBFE
0x1FA00
0x00000
IFBANK = 1
Bank 1
Bank 0
Rev. 1.2
C8051F584/5/6/7-F590/1
Flash Memory Space
(96 kB Flash Device)
Lock Byte Page
IFBANK = 2
Lock Byte
Bank 2
Bank 0
C8051F58x/F59x
IFBANK = 3
Bank 3
Bank 0
0x17FFF
0x17FFE
0x17E00
0x00000
103
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