参数资料
型号: SPD6729QCE
厂商: INTEL CORP
元件分类: 总线控制器
英文描述: PCMCIA BUS CONTROLLER, PQFP208
封装: MQFP-208
文件页数: 6/116页
文件大小: 1442K
代理商: SPD6729QCE
PCI-to-PC Card (PCMCIA) Controller — PD6729
Datasheet
103
Table 26. Word I/O Read/Write Timing
Symbol
Parameter
MIN
MAX
Units
t1
-REG or Address setup to Command active1
(S
× Tcp) – 20
ns
t2
Command pulse width2
(C
× Tcp) – 20
ns
t3
Address hold and Write Data valid from Command inactive3
(R
× Tcp) – 20
ns
t4
-WAIT active from Command active4
(C – 2) Tcp – 30
ns
t5
Command hold from -WAIT inactive
(2 Tcp) + 20
tref
Card -IOIS16 delay from valid Address (PCMCIA card specification)
35
ns
t6
-IOIS16 setup time before Command end
(3 Tcp) + 20
ns
t7
-CE2 delay from -IOIS16 active4
Tcp – 20
ns
t8
Data valid from -WAIT inactive
Tcp + 20
ns
t9
Data setup before -IORD inactive
(2 Tcp) + 20
ns
t7
Data hold after -IORD inactive
0
ns
NOTES:
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 100 ns. S = (Npres × Nval + 1), see “PCMCIA Bus Timing Calculations” on
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 05h, the Command time would be 340 ns. C = (Npres × Nval + 1), see page 101.
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 00h, the hold (Recovery) time would be 30 ns. R = (Npres × Nval + 1), see page 101.
4. For typical active timing programmed at 340 ns, maximum -WAIT timing is 200 ns after Command active.
5. -IOIS16 must go low within 3Tcp + 20 ns of the cycle beginning or -IOIS16 will be ignored and -CE will not be activated.
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