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Interruot vectors
IMS peripherals have the capability of being interrupt driven.
This means that
the controller will send a request for service directly to the processor instead of
waiting for a polling routine to service it.
The processor supports 8 interrupt
levds, Vector Interrupts 0 to 7, with VIO having the highest priority.
The
boards can be shunted to interrupt the processor at a certain level.
The current
levels are listed below with their function and the boards that use them.
Vector Interrupt
VIO
vn·
VI2··
VB*
VB
VIS
VI6
VI7
Function
Reserved by CP/M
Relative Time Clock (H... and
6... S
boards)
Time of Day CLock
(6 S
board)
Memory Parity Error ( 65 board)
Serial Communications
(H"',
"'80, 631 boards)
Hard Disk (820 board)
Floppy Disk HOI, HI, 930 boards)
Reserved for Customer Use
Reserved by CP/M
·not used by CP/M operating system.
··not used by TurboDOS
2.3
POWER SUPPLY
The IMS 5000lS and 5000SX use
a
switching power supply with the following
specifications:
Input:
100-130 V (60Hz) at 3 A maximum, or
200-260 V (50Hz) at 1.5 A maximum.
Output voltage
+5 V
+12
V
+8.5 V
+16 V
-16 V
Note:
Maximum load is 200 W total.
Output Current
3A
7A
lOA
"'A
0.5A
Filurc 2-4
P.wer Supply Specifications
IMS International
5000 Series Microcomputers/7.01.83;Page 11
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