![background image](http://html2.mh-extra.com/html/rabbit/2000/2000_user-manual_3110256090.webp)
84
Rabbit 2000 Microprocessor
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.
Table 7-11. Peripheral Device Address and Interrupt Vectors
On-Chip Peripheral
ISR Starting Address
System Management (periodic interrupt)
{IIR, 0x00}
Memory Management
No interrupts
Slave Port
{IIR, 0x80}
Parallel Port A
No interrupts
Parallel Port B
No interrupts
Parallel Port C
No interrupts
Parallel Port D
No interrupts
Parallel Port E
No interrupts
External I/O Control
No interrupts
External Interrupts
INT0 {EIR, 0x00}
INT1 {EIR, 0x10}
Timer A
{IIR, 0xA0}
Timer B
{IIR, 0xB0}
Serial Port A
{IIR, 0xC0}
Serial Port B
{IIR, 0xD0}
Serial Port C
{IIR, 0xE0}
Serial Port D
{IIR, 0xF0}
RST 10 instruction
{IIR, 0x20}
RST 18 instruction
{IIR, 0x30}
RST 20 instruction
{IIR, 0x40}
RST 28 instruction
{IIR, 0x50}
RST 38 instruction
{IIR, 0x70}
Содержание 2000
Страница 1: ...Rabbit 2000 Microprocessor User s Manual 019 0069 041018 M...
Страница 12: ...6 Rabbit 2000 Microprocessor...
Страница 46: ...40 Rabbit 2000 Microprocessor...
Страница 54: ...48 Rabbit 2000 Microprocessor...
Страница 76: ...70 Rabbit 2000 Microprocessor...
Страница 96: ...90 Rabbit 2000 Microprocessor...
Страница 142: ...136 Rabbit 2000 Microprocessor...
Страница 154: ...148 Rabbit 2000 Microprocessor...
Страница 170: ...164 Rabbit 2000 Microprocessor...
Страница 174: ...168 Rabbit 2000 Microprocessor...
Страница 180: ...174 Rabbit 2000 Microprocessor...
Страница 202: ...196 Rabbit 2000 Microprocessor...
Страница 206: ...200 Rabbit 2000 Microprocessor...
Страница 226: ......
Страница 230: ...224 Rabbit 2000 Microprocessor...