668-0011 Rabbit Semiconductor, 668-0011 Datasheet - Page 152

• 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

18.2 Dependencies
18.2.1 I/O Pins
Serial Port E can transmit on parallel port pin PG6, and can receive on pins PG7 or PG3. If
the HDLC mode is enabled, the transmit serial clock is either transmitted or received on
PG4, while the receive serial clock is either transmitted or received on PG5.
Serial Port F can transmit on parallel port pin PG2, and can receive on pins PG3 or PG1. If
the HDLC mode is enabled, the transmit serial clock is either transmitted or received on
PG0, while the receive serial clock is either transmitted or received on PG1.
18.2.2 Clocks
The data clocks for Serial Ports E – F are based on the corresponding Timer A output and
can be divided by a Timer A divider. The overall clock divider will be the value in the
appropriate register plus one.
18.2.3 Other Registers
142
TAT2R
TAT3R
PGFR
Transmit Clock
Receive Clock
Function
Register
Transmit
* Introduced with Rabbit 3000A chip.
Receive
Table 18-1. Pin Usage Serial Ports E – F
Time constant for Serial Port E
Time constant for Serial Port F
Alternate port output selection
Serial Port E
PG7, PG5
PG5, PG4
PG6
PG4
*
*
Rabbit 3000 Microprocessor User’s Manual
Function
Serial Port F
PG3, PG1
PG1, PG0
PG2
PG0
*
*