参数资料
型号: ZL50418GKG2
厂商: CONEXANT SYSTEMS
元件分类: 网络接口
英文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA553
封装: 37.50 X 37.50 MM, 2.33 MM HEIGHT, LEAD FREE, MS-034, HSBGA-553
文件页数: 47/155页
文件大小: 1928K
代理商: ZL50418GKG2
ZL50418
Data Sheet
140
Zarlink Semiconductor Inc.
12.6.2
Typical CPU Timing Diagram for a CPU Write Cycle
Figure 16 - Typical CPU Timing Diagram for a CPU Write Cycle
Description
(SCLK=100 Mhz)
(SCLK=125 Mhz)
Refer to Figure 17
Write Cycle
Symbol
Min.
Max.
Min.
Max.
Write Set up Time
TWS
10
P_A and P_CS# to
falling edge of P_WE#
Write Active Time
TWA
20
16
At least 2 SCLK cycles
Write Hold Time
TWH
2
P_A and P_CS# to
rising edge of P_WE#
Write Recovery time
TWR
30
24
At least 3 SCLK cycles
Data Set Up time
TDS
10
P_DATA to falling edge
of P_WE#
Data Hold time
TDH
2
P_DATA to rising edge
of P_WE#
P_CS#
P_W E#
P_DATA
(to dev ice)
P_A[2:0]
T
WR
Recov ery Tim e
Holdtim e
ADDR0
T
WS
T
WA
Activ eTim e
Set up time
DATA1
DATA0
ADD R1
T
WH
T
WS
T
WA
Activ eTim e
T
WH
T
DH
T
DH
T
DS
T
DS
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