Specifications

Installation 13
1.3 Device Addresses Assignments
On Q-bus systems, a range of addresses in the top 4K words is reserved
as floating address space for options. The range of addresses is from
xxx60010
8
to xxx63776
8
. The xxx means all top address bits = 1.
The first part of the list of devices that you can assign floating address
space to is in Table 1–3. The rank represents the sequence of address
assignment for the devices.
If you assign device addresses according to VAX/VMS rules, you can run
configuration programs to check which devices are installed in the system.
Devices of the same type should have sequential addresses.
In Table 1–3, the size column shows how many words of address space
each device needs. The modulus column shows the modulus used for each
starting address. For example, devices with an octal modulus of 10 must
start at an address that is a multiple of 10
8
. Use the same rule to select
a gap address after a device, or an address for a nonexistent device.
Table 1–3 CSR Address Assignments
Rank Device Size (Decimal)
Modulus
(Octal)
1 DJ11 4 10
2 DH11 8 20
3 DQ11 4 10
4 DU11, DUV11 4 10
5 DUP11 4 10
6 LK11A 4 10
7 DMC11/DMR11 4 10 (DMC
before
DMR)
8 DZ11/DZV11,
DZS11
1
(DFA before
DZx)
DZQ11,
DFA01, DZ32
4 10 (DZ11
before
DZ32)
9 KMC11 4 10
1
DZ11-E and DZ11-F are treated as two DZ11s.