668-0011 Rabbit Semiconductor, 668-0011 Datasheet - Page 206

• Manufacturer Part Number: 668-0011
• Description: IC MPU RABIT3000A 55.5MHZ128LQFP
• Manufacturer: Rabbit Semiconductor

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

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)