NCT6627UD Nuvoton Technology Corporation of America, NCT6627UD Datasheet - Page 162

• Manufacturer Part Number: NCT6627UD
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of NCT6627UD

• Lead Free Status / Rohs Status: Supplier Unconfirmed

After all IRQ/Data Frames have completed, the host controller will terminates SERIRQ with a Stop frame. Only
the host controller can initiate the Stop Frame by driving SERIRQ low for 2 or 3 clocks. If the Stop Frame is low
for 2 clocks, the Sample mode of next SERIRQ cycle’s Sample mode is the Quiet mode. If the Stop Frame is low
for 3 clocks, the Sample mode of next SERIRQ cycle is the Continuous mode.
Please see the diagram below for more details.
PCICLK
SERIRQ
H=Host Control
Note:
14.3 Stop Frame
Driver
1. There may be none, one or more Idle states during the Stop Frame.
2. The Start Frame pulse of next SERIRQ cycle may or may not start immediately after the turn-around
IRQ/DATA FRAME
S
clock of the Stop Frame.
FRAME
None
IRQ14
32:22
R
16
17
18
19
20
21
Figure 14-2 Stop Frame Timing with Host Using 17 SERIRQ Sampling Period
T
S
IRQ15
IRQ15
FRAME
R=Recovery
R
SIGNAL SAMPLED
T
Unassigned
IOCHCK#
S
IRQ15
INTA#
INTB#
INTC#
INTD#
IOCHCK#
SERIRQ SAMPLING PERIODS
None
FRAME
R
T
T=Turn-around
I
1
STOP FRAME
# OF CLOCKS PAST
Host Controller
STOP
-153-
H
W83627UHG/NCT6627UD
START
47
50
53
56
59
62
95
R
Publication Release Date: October 26, 2010
T
NEXT CYCLE
S=Sample
START
EMPLOYED BY
2
-
-
-
-
-
-
-
I= Idle.
Revision 1.7