668-0003-C Rabbit Semiconductor, 668-0003-C Datasheet - Page 90

• 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

7.9 Rabbit Interrupt Structure
An interrupt causes a call to be executed, pushing the PC on the stack and starting to exe-
cute code at the interrupt vector address. The interrupt vector addresses have a fixed lower
byte value for all interrupts. The upper byte is adjustable by setting the registers EIR and
IIR for external and internal interrupts respectively. There are only two external interrupts
generated by transitions on certain pins in parallel port E.
The interrupt vectors are shown in Table 7-11.
84
Table 7-11. Peripheral Device Address and Interrupt Vectors
System Management (periodic interrupt)
Memory Management
Slave Port
Parallel Port A
Parallel Port B
Parallel Port C
Parallel Port D
Parallel Port E
External I/O Control
External Interrupts
Timer A
Timer B
Serial Port A
Serial Port B
Serial Port C
Serial Port D
RST 10 instruction
RST 18 instruction
RST 20 instruction
RST 28 instruction
RST 38 instruction
On-Chip Peripheral
{IIR, 0x00}
No interrupts
{IIR, 0x80}
No interrupts
No interrupts
No interrupts
No interrupts
No interrupts
No interrupts
INT0 {EIR, 0x00}
INT1 {EIR, 0x10}
{IIR, 0xA0}
{IIR, 0xB0}
{IIR, 0xC0}
{IIR, 0xD0}
{IIR, 0xE0}
{IIR, 0xF0}
{IIR, 0x20}
{IIR, 0x30}
{IIR, 0x40}
{IIR, 0x50}
{IIR, 0x70}
Rabbit 2000 Microprocessor User’s Manual
ISR Starting Address