參數(shù)資料
型號: SP37E760-MC
廠商: STANDARD MICROSYSTEMS CORP
元件分類: 外設(shè)及接口
英文描述: 3.3 V I/O CONTROLLER FOR EMBEDDED APPLICATIONS
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: QFP-100
文件頁數(shù): 70/78頁
文件大?。?/td> 510K
代理商: SP37E760-MC
SMSC DS – SP37E760
Page 70
Rev. 04/13/2001
t18
t9
t8
t17
t6
t12
t19
t10
t20
t11
t13
t2
t1
t5
t3
t16
t4
t21
AX
SD<7:0>
nIOW
IOCHRDY
nWRITE
PD<7:0>
nDATAST
nADDRSTB
nWAIT
nIOW Asserted to PDATA Valid
Command Dessserted to nWRITE Change
nWRITE to Command
nIOW Deasserted to Command Deasserted
Command Deasserted to PDATA Invalid
Time Out
SDATA Valid to nIOW Asserted
nIOW Deasserted to DATA Invalid
nIOW Asserted to IOCHRDY Asserted
nWAIT Deasserted to IOCHRDY Deasserted
IOCHRDY Deasserted to nIOW Deasserted
nIOW Asserted to nWRITE Asserted
PDATA Valid to Command Asserted
Ax Valid to nIOW Asserted
nIOW Deasserted to Ax Invalid
nIOW Deasserted to nIOW or nIOR Asserted
nWAIT Asserted to IOCHRDY Deasserted
Command Deasserted to nWAIT Deasserted
ns
ns
ns
ns
ns
μs
ns
ns
ns
ns
ns
ns
ns
ns
μs
ns
ns
ns
50
40
35
50
12
24
40
50
35
45
Parameter
min
max
units
0
0
5
50
10
10
0
0
10
0
10
40
10
100
0
Notes
2
NOTES:
1. WRITE is controlled by clearing the PDIR bit to "0" in the control register before
performing an EPP Write.
2. This number is only valid if WAIT is active when nIOW goes active.
FIGURE 12 - EPP 1.7 DATA OR ADDRESS WRITE CYCLE
t1
t2
t3
t4
t5
t6
t8
t9
t10
t11
t12
t13
t16
t17
t18
t19
t20
t21
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