20-668-0024 Rabbit Semiconductor, 20-668-0024 Datasheet - Page 181

• Manufacturer Part Number: 20-668-0024
• Description: IC CPU RABBIT4000 128-LQFP
• Manufacturer: Rabbit Semiconductor

Specifications of 20-668-0024

• Processor Type: Rabbit 4000 8-bit
• Speed: 60MHz
• Voltage: 2.5V, 2.7V, 3V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 128-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: 20-668-0022; 316-1078

Chapter 18 Slave Port
Bit(s)
6:5
4:2
1:0
7
Slave Port Control Register
Value
Write
Read
000
001
010
100
101
011
110
111
00
01
10
11
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.
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, with /SCS from Parallel Port E bit 7.
Enable the auxiliary I/O bus. Parallel Port A is used for the data bus and Parallel
Port B[7:2] is used for the address bus.
This bit combination is reserved and should not be used.
This bit combination is reserved and should not be used.
Enable the slave port, with /SCS from Parallel Port B bit 6.
Enable the auxiliary I/O bus. Parallel Port A is used for the data bus and Parallel
Port B[7:0] 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)
171