20-668-0024 Rabbit Semiconductor, 20-668-0024 Datasheet - Page 170

• 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

160
Bit(s)
Bit(s)
Bit(s)
7:5
7:0
6:0
4
3
2
1
0
7
Serial Port x Divider High Register
Serial Port x Divider Low Register
Serial Port x Extended Register
Value
Value
Value
(HDLC Mode Only)
000
010
100
110
111
0
1
0
1
0
1
0
1
0
1
NRZ data encoding for HDLC receiver and transmitter.
NRZI data encoding for HDLC receiver and transmitter.
Biphase-level (Manchester) data encoding for HDLC receiver and transmitter.
Biphase-space data encoding for HDLC receiver and transmitter.
Biphase-mark data encoding for HDLC receiver and transmitter.
Normal HDLC data encoding.
Enable RZI coding (¼ bit cell IrDA-compliant). This mode can only be used
with an internal clock and NRZ data encoding.
Idle line condition is flags.
Idle line condition is all ones.
Transmit flag on underrun.
Transmit abort on underrun.
Separate HDLC external receive and transmit clocks.
Combined HDLC external and transmit clock, from transmit clock pin.
This bit is ignored in HDLC mode.
Eight LSBs of the divider that generates the serial clock for this channel. This
divider is not used unless the MSB of the corresponding SxDHR is set to one.
Disable the serial port divider and use the output of Timer A to clock the serial
port.
Enable the serial port divider, and use its output to clock the serial port. The
serial port divider counts modulo n + 1 and is clocked by the peripheral clock.
Seven MSBs of the divider that generates the serial clock for this channel.
(SEDHR)
(SEDLR)
(SFDHR)
(SFDLR)
(SEER)
(SFER)
Description
Description
Description
Rabbit 4000 Microprocessor User’s Manual
(Address = 0x00CD)
(Address = 0x00DD)
(Address = 0x00CE)
(Address = 0x00DE)
(Address = 0x00DF)
(Address = 0x00CF)