Specifications

16 Installation
Table 1–3 (Cont.) CSR Address Assignments
Rank Device Size (Decimal)
Modulus
(Octal)
56 IAV11-B 4 10
57 M7763 4 10
58 IEQ11 8 20
59 ADQ32 16 40
60 DTC04 1 2
1.3.1 Assignment Rules
The assignment rules for addresses and devices are as follows:
1. Assign addresses, starting at xxx60010, according to the sequence of
Table 1–3.
2. Assign device and gap addresses according to the octal modulus as
follows:
a. For devices with an octal modulus of 10, assign an address on a
10
8
boundary. (The three least significant address bits = 0.)
b. For devices with an octal modulus of 20, assign an address on a
20
8
boundary. (The four least significant address bits = 0.)
3. For each device connected to the bus, you must allow address space
that is equal to the modulus of the device.
4. After the last device of each type, you must allow a one-word gap
(assigned according to rule 2). This gap could be bigger when rule 2 is
applied to the following rank.
5. If a device with a higher address is used, you must allow a one-word
gap for each unused rank on the list (assigned according to rule 2).
This gap could be bigger when rule 2 is applied to the following rank.