Data Transfer; Peripheral Equipment Information - GE DATANET-30 System Manual

Each CPC occupies two option module spaces, and is assigned an address on the buffer selector.
The address is specified by the address plug for the CPC. One peripheral device at a time
connects to one CPC.
From one to four CPC's can be installed in a DATANET-30. The maximum is determined by the
space available or by the number of memory interrupt cycles used.
DATANET-30
CPC
Disc Storage Units
With All Options
Magnetic Tape Units
r -
-I
With All Options
I
I
I
I
I
I
r-
High Speed Printer
I I
I
I
I
I
I
I
' - _ _
~Card
Reader
I
1'
1'
I
I
I
I
I
L
Card Punch
- - - - _, 100 CPM or 300 CPM
Figure 26. CPC Peripheral Equipment
DATA TRANSFER. Data is transferred via the CPC one character at a time to or from the
peripheral and one DATANET-30 word at a time to or from the DATANET-30. The CPC contains
the necessary shift circuitry to accumulate characters into words and to separate sequential
characters, depending on the direction of transfer.
The CPC can transfer any number of characters from 0 to 49, 152 (16,384 word memory at three
characters/word) between a peripheral and the DATANET-30 memory. Any starting address
within a 16k memory may be specified. The CPC accesses memory sequentially under memory
interrupt control.
PERIPHERAL EQUIPMENT INFORMATION. Information for each peripheral device is contained
in the manual for the particular peripheral equipment and in Appendix G of CPB 1019A, the
DATANET-30 Programming Reference Manual.
[ID&lf&~~lf
c:J
~®------------
-35-