16
1
VMIVME-2533 Differential Digital Output Board
Figure 1-1
Functional Block Diagram
VMEbus Compatibility Logic
Typical VMEbus drivers, receivers, and control logic are shown in Figure 1-2 below.
The DTACK generator shown in Figure 1-2 is designed to select the maximum data
transfer speed.
BOARD SEL
PAL AND
CONTROL
RECEIVERS
ADDRESS
COMPARE
ADDRESS
JUMPERS
8-, 16-, 32-BIT
DATA TRANSFERS
32
13
3
R
E
G
I
S
T
E
R
S
O
U
T
P
U
T
D
R
I
V
E
R
S
32
32
64
16-BIT
ADDRESSING
V
M
E
b
u
s
DATA
TRANSCEIVERS
CSR
AND
CONTROL
LOGIC
TO FAIL LED
O
U
T
P
U
T
32 BITS OF
DIFFERENTIAL
OUTPUT VOLTAGES
ENABLE
R
E
C
E
I
V
E
R
S
I
N
P
U
T
32
64
ENABLE
AM0 to 5
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