20-668-0011 Rabbit Semiconductor, 20-668-0011 Datasheet - Page 61
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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Chapter 5 Memory Management
Bit(s)
Bit(s)
Bit(s)
Bit(s)
7:1
7:0
7:0
7:2
1:0
0
Stack Limit Control Register
Stack High Limit Register
Stack Low Limit Register
RAM Segment Register
Value
Value
Value
Value
00
01
10
11
0
1
These bits are reserved and should be written with zeros.
Disable stack-limit checking.
Enable stack-limit checking.
Lower limit for stack-limit checking. If a stack operation or stack-relative
memory access is attempted at an address less than {STKLLR, 0x0010}, a stack-
limit violation interrupt is generated.
Upper limit for stack-limit checking. If a stack operation or stack-relative
memory access is attempted at an address greater than {STKHLR, 0x00EF}, a
stack-limit violation interrupt is generated.
Compare value for RAM segment limit checking.
Disable RAM segment limit checking.
Select data-type MMU translation if PC[15:10] is equal to RAMSR[7:2].
Select data-type MMU translation if PC[15:11] is equal to RAMSR[7:3].
Select data-type MMU translation if PC[15:12] is equal to RAMSR[7:4].
(STKHLR)
(STKLLR)
(RAMSR)
(STKCR)
Description
Description
Description
Description
(Address = 0x0444)
(Address = 0x0445)
(Address = 0x0446)
(Address = 0x0448)
51
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