668-0011 Rabbit Semiconductor, 668-0011 Datasheet - Page 19

• 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

2.2 Dependencies
2.2.1 I/O Pins
The main clock input is on the CLKI pin. There is an internal Schmitt trigger on this pin to
remove problems with noise on slowly transitioning signals.
The main clock disable output is on the CLKIEN pin. Its state is changed by one of the bit
combinations of bits 4:2 in GCSR.
The 32 kHz clock input is on the CLK32K pin. There is an internal Schmitt trigger on this
pin as well.
The peripheral clock or peripheral clock divided by 2 may be optionally output on the CLK
pin by enabling it via bits 7:6 in GOCR.
2.2.2 Other Registers
Register
Function
GOCR
Used to set up the CLK output pin.
Chapter 2 Clocks
9