參數(shù)資料
型號: IBM3209K4060
英文描述: Telecom Switching Circuit
中文描述: 電信開關(guān)電路
文件頁數(shù): 106/131頁
文件大?。?/td> 1679K
代理商: IBM3209K4060
PRS28.4G
IBM Packet Routing Switch
I/O Definitions and Timing
Page 106 of 131
prs28.03.fm
August 31, 2000
7.1.2.1 Timing Window
The sampling window of SND_GRANT(n) is the time window during which the SND_GRANT(n) signal on the
device pin is sampled in order to decide on the transmission of a data or control packet. This window is
defined in relationship with the beginning of transmission of that packet on the chip output pins.
Figure 10: OCM Signal Timing Diagram
Table 25: OCM Signal Timing Values
Symbol
Parameter
Rating
Units
Min.
Max.
t
CYCLE
EMB Clock Cycle Time
16
ns
t
PULSE
EMB Clock Pulse
4
t
NO_LAP
EMB Clock Non Overlap
2
t
IN_SETUP
EMB_Data_In Setup Time
6
t
IN_HOLD
EMB_Data_In Hold Time
0
t
OUT_ARR
EMB_Data_Out Arrival Time
6.5
t
OUT_HOLD
EMB_Data_Out Hold Time
0
t
IN_HOLD
t
IN_SETUP
t
OUT_ARR
t
OUT_HOLD
t
PULSE
t
NO_LAP
t
NO_LAP
EMB_B_CLK
EMB_A_CLK
EMB_DATA_OUT
EMB_DATA_IN
EMB_MODE
nEMB_SELECT
t
CYCLE
t
PULSE
t
PULSE
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