668-0010 Rabbit Semiconductor, 668-0010 Datasheet - Page 207
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: 207 of 312
- Download datasheet (2Mb)
Chapter 23 External I/O Control
Bit(s)
(Write
(Write
only)
only)
* Introduced with Rabbit 3000A chip.
6:5
3:2
1:0
7
4
Slave Port Control Register
Value
Write
Read
00
01
10
11
00
01
10
11
0
1
0
1
Program fetch as a function of the SMODE pins.
Ignore the SMODE pins program fetch function.
These bits report the state of the SMODE pins.
These bits are ignored and should be written with zero.
/SCS from PE7.
/SCS from PB6
Disable the slave port. Parallel Port A is a byte-wide input port.
Disable the slave port. Parallel Port A is a byte-wide output port.
Enable the slave port.
Enable the external I/O bus. Parallel Port A is used for the data bus and Parallel
Port B[7:2] is used for the address bus.
Slave port interrupts are disabled.
Slave port interrupts use Interrupt Priority 1.
Slave port interrupts use Interrupt Priority 2.
Slave port interrupts use Interrupt Priority 3.
*
.
(SPCR)
Description
(Address = 0x0024)
197
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