HP 3336A - Page 66

Appendix A
Source Operation Acceptor Operation
. m Set NRED &
Set DAV High -NOAC Low
baie : Able to
Handshake &
NRED
&
NDAC
Error
ondit
Respond
to
Data
Sensed
Condition
nena
?
High
?
TI &TIO
Put or Change Duta
on DIO Lines. Ready
To Accept
Delay for Lines to
Settie
T34TI2
Dats
1s
Valid
and
may
now
be
cepted.
Set
DAV
accep
YES
Low
T4 @Ti4
Accept
Data Byte
Set NDAC High
T8& TI7
Gone High
Yet Set NDAC Low
Figure 3-A-13. Handshake Functional Block Diagram.