AM186ES Advanced Micro Devices, AM186ES Datasheet - Page 92

• Manufacturer Part Number: AM186ES
• Description: microcontrollers provide a low-cost/ high-performance solution for embedded system designers who wish to use the x86 architecture.
• Manufacturer: Advanced Micro Devices

Table 7-1
Notes:
Default priorities for the interrupt sources are used if the user does not reprogram priority levels.
1. Interrupts generate as a result of an instruction execution.
2. Trace is performed in the same manner as 8086 and 8088.
3. An ESC opcode causes a trap.
4. All three timers constitute one source of request to the interrupt controller. As such, they share the same priority
5. The interrupt types of these sources are programmable in slave mode.
6. Not available in slave mode.
7-4
Interrupt Name
Divide Error Exception
Trace Interrupt
Nonmaskable Interrupt (NMI)
Breakpoint Interrupt
INTO Detected Overflow Exception
Array Bounds Exception
Unused Opcode Exception
ESC Opcode Exception
Timer 0 Interrupt
Timer 1 Interrupt
Timer 2 Interrupt
Reserved for AMD Use
DMA 0 Interrupt/INT5
DMA 1 Interrupt/INT6
INT0 Interrupt
INT1 Interrupt
INT2 Interrupt
INT3 Interrupt
INT4 Interrupt
Asynchronous Serial Port 1 Interface
Asynchronous Serial Port 0 Interrupt
Reserved for AMD Use
level with respect to other interrupt sources. However, the timers have a defined priority order among themselves
(2A>2B>2C).
Am186ES and Am188ES Microcontroller Interrupt Types
Interrupt
15h–1Fh
Type
0Ah
0Bh
0Ch
0Dh
0Eh
00h
01h
02h
03h
04h
05h
06h
07h
08h
12h
13h
09h
0Fh
10h
11h
14h
Interrupt Control Unit
Vector Table
54h–7Ch
Address
0Ch
1Ch
4Ch
2Ch
3Ch
00h
04h
08h
10h
14h
18h
20h
48h
24h
28h
30h
34h
38h
40h
42h
44h
Type
0Ah
0Bh
0Ch
0Dh
0Eh
EOI
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
08h
08h
08h
0Fh
10h
11h
14h
Priority
Overall
1A
1B
2A
2B
2C
1
1
1
1
1
1
3
4
5
6
7
8
9
9
9
ESC Opcodes
Instructions
Undefined
DIV, IDIV
Opcodes
Related
BOUND
INTO
INT3
All
Notes
1, 3
4, 5
4, 5
4, 5
1
2
1
1
1
1
5
5
6
6
6