HP 3562A Service Manual page 260

ROM S E LL
DTACKL
Address
Delay
Comparator
- r
Data
ROM System
ROM
A21 Memory Bus
CE1 L-CE20L
Data DOL-D1 5 L
Decoders
Driver
Bus Data
Bus
I
A1-A1 6, O E L / A1 7
ROM Block
Figure 6-A3b Diagram
6-37/6-38