20-668-0011 Rabbit Semiconductor, 20-668-0011 Datasheet - Page 50
20-668-0011
Manufacturer Part Number
20-668-0011
Description
IC MPU RABIT3000A 55.5MHZ128LQFP
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-668-0011.pdf
(312 pages)
Specifications of 20-668-0011
Processor Type
Rabbit 3000 8-Bit
Speed
55.5MHz
Voltage
2.5V, 2.7V, 3V, 3.3V
Mounting Type
Surface Mount
Package / Case
128-LQFP
Data Bus Width
8 bit
Maximum Clock Frequency
55.5 MHz
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 55 C
Number Of Programmable I/os
56
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
316-1061
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
20-668-0011
Manufacturer:
Rabbit Semiconductor
Quantity:
10 000
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Either of the two most significant address bits (which are used to select the quadrant) can
be inverted, providing the ability to bank-switch other pages from a larger memory device
into the same memory bank.
Code is executed in the 64 KB logical memory space, which is divided into four segments:
root, data, stack, and XPC. The root segment is mapped directly to physical address
0x00000, while the data and stack segments can be mapped to 4 KB boundaries anywhere
in the physical space. The boundaries between the root and data segments and the data and
stack segments can be adjusted in 4 KB blocks as well.
The XPC segment is a fixed 8 KB and points to a physical memory address specified in
the XPC register. It is possible to run code in the XPC window, providing an easy means
of storing and executing code beyond the 64 KB logical memory space. Special call and
return instructions to physical addresses are provided that automatically update the XPC
register as necessary.
Figure 5-2. Logical and Physical Memory Mapping
40
Rabbit 3000 Microprocessor User’s Manual
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