CL-PD6833
PCI-to-CardBus Host Adapter
Table 15-13. Word I/O Read/Write Timing
Symbol
Parameter
MIN
MAX
Units
t1
-REG or Address setup to Command active1
(S × Tcp) – 10
ns
t2
Command pulse width2
(C × Tcp) – 10
ns
t3
Address hold and Write Data valid from Command inactive3
(R × Tcp) – 10
ns
t4
-WAIT active from Command active4
(C – 2)Tcp – 10 ns
t5
Command hold from -WAIT inactive
(2 Tcp) + 10
ns
tref
Card -IOIS16 delay from valid Address (PC Card specification)
35
ns
t6
-IOIS16 setup time before Command end
t7
-CE2 delay from -IOIS16 active5
(3 Tcp) + 10
ns
Tcp – 10
ns
t8
Data valid from -WAIT inactive
Tcp + 10
ns
t9
Data setup before -IORD inactive
(2 Tcp) + 10
ns
t10
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 00h, the setup time would be 20 ns. S = Nval + 1, see page 192.
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 07h, the Command time would be 230 ns. C = Nval + 1, see page 192.
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 04h, the hold (Recovery) time would be 170 ns. R = Nval + 1, see page 192.
4 For command active timing programmed at 230 ns, maximum −WAIT timing is 100 ns after command active.
5 -IOIS16 must go low within 3Tcp + 10 ns of the cycle beginning or -IOIS16 is ignored and -CE is not activated.
194
ELECTRICAL SPECIFICATIONS
ADVANCE DATA BOOK v0.3
June 1998