參數(shù)資料
型號： PD6710
廠商： Intel Corp.
英文描述： ISA-to-PC-Card (PCMCIA) Controllers
中文描述： ISA -到- PC卡（PCMCIA）的控制器
文件頁數(shù)： 112/138頁
文件大?。?/td> 723K
代理商： PD6710
PD6710/
’
22
—
ISA-to-PC-Card (PCMCIA) Controllers
112
Datasheet
Table 32. Word I/O Read/Write Timing
Symbol
Parameter
MIN
MAX
Units
t
1
-REG or Address setup to Command active
1
(S
×
Tcp)
–
10
ns
t
2
Command pulse width
2
(C
×
Tcp)
–
10
ns
t
3
Address hold and Write Data valid from Command inactive
3
(R
×
Tcp)
–
10
ns
t
4
-WAIT active from Command active
4
(C
–
2)Tcp
–
10
ns
t
5
Command hold from -WAIT inactive
(2 Tcp) + 10
ns
t
ref
Card -IOIS16 delay from valid Address (PC Card specification)
35
ns
t
6
-IOIS16 setup time before Command end
(3 Tcp) + 10
ns
t
7
-CE2 delay from -IOIS16 active
5
Tcp
–
10
ns
t
6
Data valid from -WAIT inactive
Tcp + 10
ns
t
9
Data setup before -IORD inactive
(2 Tcp) + 10
ns
t
10
Data hold after -IORD inactive
0
ns
1. The Setup time is determined by the value programmed into the
Setup Timing
register, index 3Ah/3Dh. Using the Timer Set
0 default value of 01h, the setup time would be 70 ns. S = (N
pres
×
N
val
+ 1), see
“
PC Card Bus Timing Calculations
”
on
page 109
.
2. The Command time is determined by the value programmed into the
Command Timing
register, index 3Bh/3Eh. Using the
Timer Set 0 default value of 06h, the Command time would be 270 ns. C = (N
×
N
val
+ 1), see page
109
.
3. The Recovery time is determined by the value programmed into the
Recovery Timing
register, index 3Ch/3Fh. Using the
Timer Set 0 default value of 03h, the hold (Recovery) time would be 150 ns. R = (N
×
N
+ 1), see page
109
.
4. For typical active timing programmed at 280 ns, maximum -WAIT timing is 190 ns after Command active.
5. -IOIS16 must go low within 3Tcp + 10 ns of the cycle beginning or -IOIS16 will be ignored and -CE will not be activated.
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