151-0153 Rabbit Semiconductor, 151-0153 Datasheet - Page 40

• Manufacturer Part Number: 151-0153
• Description: ASSEMBLY - RABBITFLEX CABLES
• Manufacturer: Rabbit Semiconductor
• Series: RabbitFLEX™r

Specifications of 151-0153

• Accessory Type: Cable Assembly
• For Use With/related Products: BL300F
• Lead Free Status / RoHS Status: Vendor undefined / Vendor undefined

4.3.7 External Interrupt
The external interrupt can be configured to use J1, pin 7 on the RabbitFLEX BL300F. The external inter-
rupt is enabled using the Rabbit’s parallel port E, pin 0 (PE0), which is associated with interrupt vector 0,
located at EIR:0x000. The following steps must be taken to prepare the external interrupt for use:
1. Write the interrupt vector to the external interrupt table. The interrupt vector is typically a call to an
2. Write to I/O register I0CR to select what edges will be detected and the interrupt priority.
See the Rabbit 3000 Microprocessor User’s Manual for more information on interrupts.
4.3.8 External Reset
The external reset can be configured to use J1, pin 8 on the RabbitFLEX BL300F. This master reset input
will initialize everything in the Rabbit 3000 except for the real-time clock registers. For more information
regarding system reset, see the Rabbit 3000 Microprocessor User’s Manual.
When a battery is installed, battery backup of the real-time clock and the RAM selected by /CS1 occurs
during reset and powerdown. For more information regarding battery-backed circuits, see the PowerCore
FLEX User’s Manual.
4.3.9 PWM Outputs
PWM stands for pulse width modulation, which allows the creation of a digital pulse train with a variable
on/off duty cycle. This can be filtered to create an analog voltage, or used directly to control many devices,
such as lamps or LEDs. Creating an analog voltage then feeding it to an analog driver or amplifier creates
a DAC system.
Four PWM outputs are available on a RabbitFLEX BL300F. A Rabbit PWM output has 10-bit resolution
and consists of a train of pulses periodic on a 1024-count frame with a duty cycle that varies from 1/1024
to 1024/1024
Each PWM output can be further configured as:
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interrupt service routine (ISR). If it can fit into the 16-byte table entry, it is possible to place the ISR
directly into the external interrupt table.
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Direct Output
Sinking Driver, 100 mA
Sinking Driver, 1 A, +K protected
Sourcing Driver, +K V, 400 mA
Table 4-7. Location of PWM Outputs on RabbitFLEX BL300F
PWM Output
PWM 0
PWM 1
PWM 2
PWM 3
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Connector and Pin
J2, pin 5
J2, pin 6
J2, pin 7
J2, pin 8
RabbitFLEX BL300F Options