參數(shù)資料
型號(hào)： SAFC509-L
廠商： SIEMENS AG
元件分類(lèi)： 8位微控制器
英文描述： 8-Bit CMOS Microcontroller
中文描述： 8位CMOS微控制器
文件頁(yè)數(shù)： 16/74頁(yè)
文件大?。?/td> 1607K
代理商： SAFC509-L
Semiconductor Group
15
09.96
C509-L
Memory Organization
The C509-L CPU manipulates data and operands in the following five address spaces:
– up to 64 Kbyte of external program memory
– up to 64 Kbyte of external data memory
– 512 byte of internal Boot ROM (program memory)
– 256 bytes of internal data memory
– 3 Kbyte of external XRAM data memory
– a 128 byte special function register area
Figure 5
illustrates the memory address spaces of the C509-L.
Figure 5
C509-L Memory Map
The C509-L can operate in four different operating modes (chipmodes) with different program and
data memory organizations :
– Normal Mode
– XRAM Mode
– Bootstrap Mode
– Programming Mode
Table 2
describes the program and data memory areas which are available in the different
chipmodes of the C509-L. It also shows the control bits of SFR SYSCON1, which are used for the
software selection of the chipmodes.
Figures 6
to
9
shows the four chipmode configurations with
the code and data memory partitioning.
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