668-0003-C Rabbit Semiconductor, 668-0003-C Datasheet - Page 102
668-0003-C
Manufacturer Part Number
668-0003-C
Description
IC CPU RABBIT2000 30MHZ 100PQFP
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-668-0003.pdf
(228 pages)
Specifications of 668-0003-C
Rohs Status
RoHS non-compliant
Processor Type
Rabbit 2000 8-Bit
Speed
30MHz
Voltage
2.7V, 3V, 3.3V, 5V
Mounting Type
Surface Mount
Package / Case
100-MQFP, 100-PQFP
Features
-
Other names
316-1004
668-0003
668-0003
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
668-0003-C
Manufacturer:
Rabbit Semiconductor
Quantity:
10 000
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8.4 Allocation of Extended Code and Data
The Dynamic C compiler compiles code to root code space or to extended code space.
Root code starts in low memory and compiles upward.
Allocation of extended code starts above the root code and data. Allocation normally con-
tinues to the end of the flash memory.
Data variables are allocated to RAM working backwards in memory. Allocation normally
starts at 52K in the 64K D space and continues. The 52K space must be shared with the
root code and data, and is allocated upward from zero.
Dynamic C also supports extended data constants. These are mixed in with the extended
code in flash.
96
Debug
64K
56K
52K
Variables
Figure 8-3. Example of Memory Mapping and Memory Usage
xcode
window
Stack
Root
code
Rabbit 2000 Microprocessor User’s Manual
0K
1024K
512K
Variables
Stacks
Extended code
Root code and constants
Available RAM
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