參數(shù)資料
型號: CT2553
廠商: Aeroflex Inc.
英文描述: CT2553 / 2554 / 2555 / 2556 Advanced Integrated MUX (AIM) Hybrid FOR MIL-STD-1553
中文描述: CT2553 / 2554 /二千五百五十六分之二千五百五十五高級集成復用器(AIM)的混合的MIL - STD - 1553的
文件頁數(shù): 26/36頁
文件大小: 352K
代理商: CT2553
Aeroflex Circuit Technology
26
SCDCT2553 REV B 8/6/99 Plainview NY (516) 694-6700
A02
A01
A00
MEM/REG
D15-D00
IOEN
SELECT
STRBD)
(Internal)
16MHz Clock
RD/WR
READYD
See Note 1
td1
td8
tpw1
CPU DATA
EXTLD
td9
VALID
VALID
tpw6
td5
td2
Figure 29 – CPU Writes to External Register
CPU Writes to External Register
SYMBOL
DESCRIPTION
MIN
MAX
UNITS
td1
READYD low delay (CPU Handshake)
-
150
ns
td2
IOEN high delay (CPU Handshake)
-
20
ns
tpw1
READYD pulse width (CPU Handshake)
50
-
ns
td5
EXTLD low delay
50
-
ns
td8
Register Data/Address set-up time
-
30
ns
td9
Register Data/Address set-up time
-
0
ns
tpw6
EXTLD low pulse width
56
-
ns
tr
READYD to STRBD release
-
1.37
μs
tz
(SELECT
STRBD) to IOEN
-
1.8
μs
tz
tr
See Note 2
NOTE:
1. STRBD to IOEN (low) delay is two clock cycles. If contention occurs, delay is two clock cycles following release of bus.
2. CPU must release STRBD within 1.5μs of IOEN going active. READYD will go away within one clock cycle maximum.
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