參數(shù)資料
型號(hào): MC100SX1451FI100FI
廠商: Motorola, Inc.
英文描述: Current-Limited, Power-Distribution Switches 8-MSOP-PowerPAD -40 to 85
中文描述: AUTOBAHNE⑩⑩SPANCEIVERE
文件頁(yè)數(shù): 13/17頁(yè)
文件大小: 197K
代理商: MC100SX1451FI100FI
MC100SX1451FI100
ECLinPS and ECLinPS Lite
DL140 — Rev 3
13
MOTOROLA
Note 1:
Propagation Delay T9
Becasue the typical use of the AutoBahn is in a shared bus
system, the propagartion delay T9 (STRB –> data valid) is
the time between the falling edge of STRB and OUTPUT
ACTIVE of the receiver. The crosspoint of 1.5V is dependent
on the bus environment. See Figure 10.
Propagation Delay T10
This value is taken with the high impedance active probe.
With a higher load at the pin, this value will be higher up
to 5%.
Propagation Delay T11
The definition of the propagation delay T11 corresponds to
T9. In this case, T11 is the time between the rising edge of
STRB and the HIGH IMPEDANCE of the receiver. That
means, other talker of the common bus have to wait for T11 to
send datas to the bus. See Figure 10.
T9
T11
OUTPUT ACTIVE
HIGH Z
HIGH Z
Figure 10. Definition of the Waveforms STRB
Data Valid
DATA
STRB
1.5V
0V
Load C=15pF
R=1k
TIMING WAVEFORMS
STRB (I)
SER (O)
SER (O)
T1
1.5V
50%
Waveform 1. Start of Transmit Timing
D00:D31 (I)
R/W (I)
1.5V
1.5V
REGSEL (I)
1.5V
1.5V
STRB (I)
1.5V
FULL (O)
1.5V
HIGH Z
DATA VALID
1
1.5V
HIGH Z
1
T4
T3
T2
T5
Waveform 2. Transmit Mode – Data Transfer Handshake
NOTE 2: T1 (STRB to SER differential) is indeterminate, varying from 3 to 9 bit clock cycles
due to synchronization circuitry to avoid metastability.
NOTE 3
NOTE 3: STRB deassertion to next FULL a minimum of 18 nsec.
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