668-0003-C Rabbit Semiconductor, 668-0003-C Datasheet - Page 112

• Manufacturer Part Number: 668-0003-C
• Description: IC CPU RABBIT2000 30MHZ 100PQFP
• Manufacturer: Rabbit Semiconductor

Specifications of 668-0003-C

• Rohs Status: RoHS non-compliant
• Processor Type: Rabbit 2000 8-Bit
• Speed: 30MHz
• Voltage: 2.7V, 3V, 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 100-MQFP, 100-PQFP
• Features: -
• Other names: 316-1004; 668-0003

9.5 Parallel Port E
Parallel port E, shown in Figure 9-2, has eight I/O pins that can be individually pro-
grammed as inputs or outputs. Port E has a higher drive than most of the other ports. PE7
is used as the slave port chip select when the slave port is enabled. Each of the port E out-
puts can be configured as an I/O strobe. In addition, four of the port E lines can be used as
interrupt request inputs. The output registers are cascaded and timer-controlled, making it
possible to generate precise timing pulses.
106
I/O Data
Figure 9-2. Parallel Port E Block Diagram
perclk/2
Timer A1
Timer B1
Timer B2
perclk/2
Timer A1
Timer B1
Timer B2
Rabbit 2000 Microprocessor User’s Manual
I7
I6
I5
I4
I3
I2
I1
I0
/scs
Inputs
PE3
PE7
PE4
PE0
INT1
INT0
INT1
INT0