ENSONIQ ASR-10 Manuel d'instructions télécharger pdf (Page 25)

Section 1 — Controls and Architecture ASR-10 Musician’s Manual

14 About Memory

What is a SIMM?

SIMM is an acronym which stands for Single In-line Memory Module. SIMMs have become the

industry standard used by most computers (both IBM and Mac compatible) to expand the

computer’s memory. Because of this, SIMMs are readily available in most computer software

stores, and from mail order organizations. The ASR-10 memory, like a computer, is also

expanded using SIMMs.

Edge Connector

Latching Hole

Drams (amount varies)

Alignment

Notch

Internal Memory

As it comes out of the box, the ASR-10 contains 2 MegaBytes or 1 MegaWord of internal memory

(a word is one single sample, or 16 bits). That’s enough for 31.5 (mono) or 15.75 (stereo) seconds

of sampling at a 29.8 KHz sample rate, or about 400,000 notes of sequencer memory.

This internal memory is shared by sounds and the sequencer. The memory is distributed

dynamically between instruments and sequences, which means that the more sounds you have in

memory, the less sequencer memory you have, and vice versa.

Expanding the ASR-10 Memory

If you want to expand the memory, the ASR-10 can address up to 16 MegaBytes/8 MegaWords,

using industry standard 1m x 8 or 4m x 8 non-parity SIMMs. There are five different memory

allocations, as shown below:

SIMMS 1m x 8 (standard) 4m x 8 1m x 8 1m x 8 & 4m x 8 4m x 8

SIMMS Used two two four two & two four

MegaBytes 2 8 4 10 16

MegaWords 1 4 2 5 8

Blocks 3,800* 16,000* 7,900* 20,000* 31,000*

* Actual block count may vary due to different O.S. Versions.

Accessing SIMMs

To access the SIMMs in your ASR-10, make sure all cables, especially the power cable, are

unplugged from the ASR-10. Turn the unit upside down on a soft surface with the keys facing

away from you. Remove the two screws holding the trap door and remove the trap door from

the bottom of the ASR-10. As it comes from the factory, the ASR-10 would look like this

underneath the trap door:

Two 1-MegaByte SIMMs

Expansion slots are empty

Jumper is connected for

STANDARD SIMM Memory.

Move to the other pins when

using Expansion SIMM Slots.

Expansion SIMM Slots

Move jumper when

adding expansion memory

MEM EXP JMP

Standard SIMM Slots

STD

EXP

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 389 390

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ENSONIQ ASR-10 Manuel d'instructions Page 25

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