n80930hf Intel Corporation, n80930hf Datasheet - Page 31

• Manufacturer Part Number: n80930hf
• Description: Universal Serial Peripheral Controller
• Manufacturer: Intel Corporation

6.4.2
T
T
T
T
T
T
NOTES:
1.
2.
Symbol
ADVANCE INFORMATION
CLYV
CLYX
RLYV
RLYX
WLYV
WLYX
( 2)
W is the number of real-time wait states (0, 1, 2, ... highest possible number).
The real-time wait function has a critical timing for instruction reads. It is not advisable to use this fea-
ture for instruction reads during page mode.
REAL-TIME WAIT STATE FUNCTION AC CHARACTERISTICS
WCLK Low to WAIT# Setup
WAIT# Hold after WCLK Low
PSEN# or RD# Low to WAIT# Setup
WAIT# Hold after PSEN# or RD# Low
WR# Low to WAIT# Setup
WAIT# Hold after WR# Low
Table 17. Real-time Wait State AC Timing Specifications
Parameter
8 x 930H x UNIVERSAL SERIAL BUS PERIPHERAL CONTROLLER
(W)T
(W)T
(W)T
Min
CLK
CLK
CLK
0
0
0
+ 5
+ 5
+ 5
F
CLK
Variable
Typ
(1) (2)
(0.5+W)T
(0.5+W)T
(0.5+W)T
0.5 T
0.5 T
0.5 T
Max
CLK
CLK
CLK
CLK
CLK
CLK
– 13
– 13
– 13
– 13
– 13
– 13
Units
ns
ns
ns
ns
ns
ns
27