DRV11-WA Pin Out from DEC

DEC DRV11-WA

The pin out for DRV11-WA produced by DEC is shown in the table below.
The User's Guide for the General Purpose DMA Interface, DRV11 WA, was produced in 1986.
as Book Number; EK-DRVWA-UG-002.

However this pin-out was extracted from a document I wrote in 1992.
Part of the specification for a custom card design that interfaced to a DRV-11 card.
Either way, this interface is obsolete, being produce for the uVAX series of computers.
That is, the entire line of VAX and uVAX computers are out dated and obsolete.

**DRV11-WA Pin Out**
Pin No.	Signal name	Description	Pin No.	Signal name	Description
J1			J2
A	GND	Ground	A	GND	Ground
B	Cycle Request H	-	B	Busy H	-
C	GND	Ground	C	GND	Ground
D	INIT V2 H	-	D	ATTN H	-
E	GND	Ground	E	GND	Ground
F	Ready H	-	F	A00 H	-
H	GND	Ground	H	GND	Ground
J	WC INC ENB H	-	J	BA INC ENB H	-
K	Single Cycle H	-	K	FNCT 3 H	-
L	Status A H	-	L	FNCT 3 H	-
M	GND	Ground	M	GND	Ground
N	INIT H	-	N	C0 H	-
P	GND	Ground	P	GND	Ground
R	Status B H	-	R	FNCT 2 H	-
S	GND	Ground	S	GND	Ground
T	Status C H	-	T	C1 H	-
U	GND	Ground	U	GND	Ground
V	Status C H	-	V	FNCT 1 H	-
W	GND	Ground	W	GND	Ground
X	GND	Ground	X	GND	Ground
Y	GND	Ground	Y	GND	Ground
Z	GND	Ground	Z	GND	Ground
AA	GND	Ground	AA	GND	Ground
BB	GND	Ground	BB	GND	Ground
CC	7 OUT H	Bit 7 output	CC	7 IN H	Bit 7 input
DD	8 OUT H	Bit 8 output	DD	8 IN H	Bit 8 input
EE	6 OUT H	Bit 6 output	EE	6 IN H	Bit 6 input
FF	9 OUT H	Bit 9 output	FF	9 IN H	Bit 9 input
HH	5 OUT H	Bit 5 output	HH	5 IN H	Bit 5 input
JJ	10 OUT H	Bit 10 output	JJ	10 IN H	Bit 10 input
KK	4 OUT H	Bit 4 output	KK	4 IN H	Bit 4 input
LL	11 OUT H	Bit 11 output	LL	11 IN H	Bit 11 input
MM	3 OUT H	Bit 3 output	MM	3 IN H	Bit 3 input
NN	12 OUT H	Bit 12 output	NN	12 IN H	Bit 12 input
PP	2 OUT H	Bit 2 output	PP	2 IN H	Bit 2 input
RR	13 OUT H	Bit 13 output	RR	13 IN H	Bit 13 input
SS	1 OUT H	Bit 1 output	SS	1 IN H	Bit 1 input
TT	14 OUT H	Bit 14 output	TT	14 IN H	Bit 14 input
UU	0 OUT H	Bit 0 output	UU	0 IN H	Bit 0 input
VV	15 OUT H	Bit 15 output	VV	15 IN H	Bit 15 input

Digital Equipment Corporation Q-Bus card dimensions

Q Bus Card Sizes

Note that some of the pin labels are not used; for example, G, I, O, Q, GG and so on.
The outputs from the DRV11 card are standard TTL single-ended Totem-Pole drivers.
The design I used included the following ICs for interface:
Two 8-bit 74AS574 were used to drive data into the DRV11 [16-bit wide bus].
True table and data on the similar 74xx374 octal flip flop.
The outputs from the DRV11 were not used in this particular design example [being output to another card].
Both the input and output data width for the DRV11 is a 16-bit wide data bus.

Digital Equipment Corporation [DEC] was purchased by Compaq in 1998.
The DRV-11 card was a board used on the Q-Bus, so it's a sub-bus of Q-bus.

VAX Buses [Digital Equipment Corp.], include DR11W, DRV11, Q-Bus, and Unibus.
VAX interfaces were superseded in the 1990's by the Alpha computer lines, and then discontinued in the early 2000's.
VAX and MicroVax were never used as personal computers.


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