668-0010 Rabbit Semiconductor, 668-0010 Datasheet - Page 206
668-0010
Manufacturer Part Number
668-0010
Description
IC MPU RABIT3000 55.5MHZ 128LQFP
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-668-0011.pdf
(312 pages)
Specifications of 668-0010
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
316-1016
- Current page: 206 of 312
- Download datasheet (2Mb)
23.4 Register Descriptions
196
Bit(s)
* These bits are ignored in versions of the Rabbit 3000 before the Rabbit 3000A and were always
7:6
5:4
1
0
3
2
2
*
*
written with zero.
I/O Bank x Control Register
Value
00
00
01
10
11
01
10
11
0
1
0
1
0
1
0
1
0
1
Fifteen wait states for accesses in this bank.
Seven wait states for accesses in this bank.
Three wait states for accesses in this bank.
One wait state for accesses in this bank.
The I signal is an I/O chip select.
The I signal is an I/O read strobe.
The I signal is an I/O write strobe.
The I signal is an I/O data (read or write) strobe.
Writes are not allowed to this bank. Transactions are normal in every other way;
only the write strobe is inhibited.
Writes are allowed to this bank.
Active-low I signal.
Inverted (active-high) I signal.
I/O strobe (I) is active low.
I/O strobe (I) is active high.
Normal I/O Transaction timing.
Shorten read strobe by one clock cycle. Transaction length remains the same.
Use I/O bus if enabled.
Always use memory data bus.
(IB0CR)
(IB1CR)
(IB2CR)
(IB3CR)
(IB4CR)
(IB5CR)
(IB6CR)
(IB7CR)
Description
Rabbit 3000 Microprocessor User’s Manual
(Address = 0x0080)
(Address = 0x0081)
(Address = 0x0082)
(Address = 0x0083)
(Address = 0x0084)
(Address = 0x0085)
(Address = 0x0086)
(Address = 0x0087)
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