IBM 6580 User Manual

•
•
Type D. This memory configuration
always consists of a 192A base
type memory card in row E of the
distribution board plus an appro-
priate type B memory extender card
in row F.
Type E. This memory configuration
always consists of a 256B base
type memory card in row E of the
distribution board plus an appro-
priate type B memory extender card
in row F.
See Figure 6 .. 6 for memory configllra-
tions.
BYTES
128K
160K
1601<
192K
192K
1921<
224K
224K
224K
256K
256K
256K
320K
320K
320K
384K
MEMORY CONFIGURATIONS
MEMORY
SIZE
FIELD
128B
160A
160B
192A
192B
192C
224B
224C
2241:>
256B
256C
256D
320C
320D
320E
384E
ROW
E
128B*
160A~':
160B*
192A~'"
192B~':
160A~':
224B*
160A~':
192A~':
256B~';o
160A*
192A*
160A*
192A*
256B*
256B*
*
Base Memory Card
ROW
F
64B**
32B~"'~'"
96B**
64B~"'*
160B**'
128B ....... ' ..
64B .. h ...
128B~"'*
** Extender Memory Card
Figure 6-6. Memory Configurations
Program Memory Requirements
Listed are guidelines for IBM Licensed
Program memory requirements. This
list is only a guide, since system
configurations and World Trade
requirements may change the memory
requirement. The proper sales litera-
'ture has the latest requirements.
Texpack E 128K
Textpack 1 160K
Textpack 2 192K
ASYNC Communications 192K
BSC Communications 224K
Textpack 3 2241<
Textpack 4 256K
Textpack 6 320K
DISKETTE ADAPTER CARD
The diskette adapter and file control
cards are located in the diskette
drive unit. The electronic signals
needed for the diskette electronics
are supplied through the extended sys-
tem bus.
The display station supports the
attachment of up to two diskette
drives to provide high capacity stor-
age. One diskette adapter card will
support both the single and dual, ,type
1 and type 2D drive configurations.
The diskett~ adapter card is attached
to the system bus through the bus
extension. This adapter card provides
the necessary control logic to inter~
face between the diskette drives and
the system bus. The diskette adapter
card includes a microprocessor, a
counter, a drive control, and the bus
interface logic.
The track ,and sector information is
located in the diskette address por-
tion of the diskette adapter card.
The command and status information
which identify the current condition
of the drives is contained in the com-
mand and status portions of the
adapter card. The microprocessor pro-
Chapter 6. System Electronics/Power Supply 6-7

IBM 6580 Specifications

General

Brand	IBM
Model	6580
Category	Desktop
Language	English