S3C9454B View Datasheet(PDF) - Samsung
Part Name
Description
MFG CO.
'S3C9454B' PDF : 199 Pages View PDF
S3C9454B/F9454B
ADDRESS SPACES
REGISTER ARCHITECTURE
The upper 64-bytes of the S3C9454B/F9454B's internal register file are addressed as working registers, system
control registers and peripheral control registers. The lower 192-bytes of internal register file(00H–BFH) is called
the general purpose register space. 234 registers in this space can be accessed; 208 are available for general-
purpose use.
For many SAM88RCRI microcontrollers, the addressable area of the internal register file is further expanded by
additional register pages at the general purpose register space (00H–BFH: page0). This register file expansion is
not implemented in the S3C9454B/F9454B, however.
The specific register types and the area (in bytes) that they occupy in the internal register file are summarized in
Table 2-1.
Table 2-1. Register Type Summary
Register Type
CPU and system control registers
Peripheral, I/O, and clock control and data registers
General-purpose registers (including the 16-bit
common working register area)
Total Addressable Bytes
Number of Bytes
11
15
208
234
2-5
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