668-0011 Rabbit Semiconductor, 668-0011 Datasheet - Page 29
668-0011
Manufacturer Part Number
668-0011
Description
IC MPU RABIT3000A 55.5MHZ128LQFP
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-668-0011.pdf
(312 pages)
Specifications of 668-0011
Rohs Status
RoHS non-compliant
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
Features
-
Other names
316-1043
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
668-0011
Manufacturer:
Rabbit Semiconductor
Quantity:
10 000
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Chapter 2 Clocks
3000A)
(Rabbit
Bit(s)
Bit(s)
Bit(s)
*
6:0
6:0
7:5
2:0
3
7
7
4
Global Power Save Control Register
*
Global Clock Modulator 0 Register
Global Clock Modulator 1 Register
Bit 3 was always written with zero in the original Rabbit 3000 chip.
Value
Value
Value
000
001
011
100
101
110
111
000
001
011
100
101
110
111
0
1
0
1
0
1
0
1
Enable normal spectrum spreading.
Enable strong spectrum spreading.
These bits are reserved and should be written with zeros.
Disable the spectrum spreader.
Enable the spectrum spreader.
These bits are reserved and should be written with zeros.
Self-timed chip selects are disabled.
This bit combination is reserved and should not be used.
This bit combination is reserved and should not be used.
296 ns self-timed chip selects (192 ns best case, 457 ns worst case).
234 ns self-timed chip selects (151 ns best case, 360 ns worst case).
171 ns self-timed chip selects (111 ns best case, 264 ns worst case).
109 ns self-timed chip selects (71 ns best case, 168 ns worst case).
Normal Chip Select operation.
Short Chip Select timing when dividing main oscillator by 4, 6, or 8.
Normal Chip Select timing for write cycles
Short Chip Select timing for write cycles (not available in full speed).
The 32 kHz clock divider is disabled.
This bit combination is reserved and should not be used.
This bit combination is reserved and should not be used.
32 kHz oscillator divided by two (16.384 kHz).
32 kHz oscillator divided by four (8.192 kHz).
32 kHz oscillator divided by eight (4.096 kHz).
32 kHz oscillator divided by sixteen (2.048 kHz).
(GCM0R)
(GCM1R)
(GPSCR)
Description
Description
Description
(Address = 0x000A)
(Address = 0x000B)
(Address = 0x000D)
19
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