CT2566 Datasheet, PDF (24/37 Pages) Aeroflex Circuit Technology – CT2566 MIL-STD-1553 to Microprocessor Interface Unit

12MHz Clock
(Internal)
STRBD (41)
SELECT (1)
IOEN (42)
READYD (3)
MEM/REG (10)
RD/WR (2)
MEMCS (16)
MEMWR (57)
A15-A00
D15-D00
See Note
td1
td2
tpw1
tpw3
td3
tpw2
RAM ADDRESS VALID
RAM DATA VALID
NOTE: STRBD to IOEN (low) delay is two clock cycles. If contention occurs, delay is two clock cycles following release of bus.
SYMBOL
td1
td2
tpw1
td3
tpw2
tpw3
CPU Writes To Ram
DESCRIPTION
MIN
READYD low delay (CPU Handshake)
-
IOEN high delay (CPU Handshake)
-
READYD pulse width (CPU Handshake)
70
CPU MEMWR low delay
-
CPU MEMWR low pulse width
70
CPU MEMCS low pulse width
70
MAX
200
20
-
120
-
-
UNITS
ns
ns
ns
ns
ns
ns
Aeroflex Circuit Technology
Figure 26 – CPU writes to RAM
24
SCDCT2566 REV B 8/10/99 Plainview NY [phone]