Samsung S5PC110, Manual

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S5PC110_UM 2 SROM CONTROLLER
2-1
2
SROM CONTROLLER
2.1 SROM CONTROLLER
2.1.1 OVERVIEW OF SROM CONTROLLER
S5PC110 SROM Controller (SROMC) support external 8 / 16-bit NOR Flash/ PROM/ SRAM memory.
S5PC110 SROM Controller supports 6-bank memory up to maximum 16Mbyte per bank.
2.1.2 KEY FEATURES OF SROM CONTROLLER
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Supports SRAM, various ROMs and NOR flash memory
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Supports only 8 or 16-bit data bus (only 16-bit data bus for BANK0)
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Address space: Up to 16MB per Bank
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Supports 6 banks.
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Fixed memory bank start address
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External wait to extend the bus cycle
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Supports byte and half-word access for external memory
2.1.3 BLOCK DIAGRAM OF SROM CONTROLLER
SROM
DECODER
SFR
CONTROL &
STATE MACHINE
SROM I/F
SIGNAL
GENERATO
N
AHB I/F for SROM SFR
AHB I/F for SROM MEM
SROM MEM I/F
DATA PATH
Figure 2-1 Block Diagram of SROM Controller