20-668-0024 Rabbit Semiconductor, 20-668-0024 Datasheet - Page 151

• 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 16 Serial Ports A – D
Bit(s)
7:6
5:4
3:2
1:0
Serial Port x Control Register
Value
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
No operation. These bits are ignored in the asynchronous mode.
In the clocked serial mode, start a byte-receive operation.
In the clocked serial mode, start a byte-transmit operation.
In the clocked serial mode, start a byte-transmit operation and a byte-receive
operation simultaneously.
Parallel Port C is used for input.
Parallel Port D is used for input.
Parallel Port E is used for input.
Disable the receiver input.
Asynchronous mode with 8 bits per character.
Asynchronous mode with 7 bits per character. In this mode the most significant
bit of a byte is ignored for transmit, and is always zero in receive data.
Clocked serial mode with external clock.
Clocked serial mode with internal clock.
The serial port interrupt is disabled.
The serial port uses Interrupt Priority 1.
The serial port uses Interrupt Priority 2.
The serial port uses Interrupt Priority 3.
(SACR)
(SBCR)
(SCCR)
(SDCR)
Description
(Address = 0x00C4)
(Address = 0x00D4)
(Address = 0x00E4)
(Address = 0x00F4)
141