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SH3003 数据表(PDF) 22 Page - Semtech Corporation

部件名 SH3003
功能描述  MicroBuddy짰 Support IC for Microcontrollers
PDF  30 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SH3003 数据表(HTML) 22 Page - Semtech Corporation

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©2006 Semtech Corp.
SH3003
www.semtech.com
Not authorized for release outside of Semtech
- DRAFT
POWER MANAGEMENT
Application Information (continued)
1. INT disabled, uP initiates write access. Active high interrupt.
uBuddyIOOut
uPIOOut
A0
A4
XXX
D0
D7
...
CombinedIO
A0
A4
XXX
D0
D7
...
...
2. INT active (high), uP initiates write access
uBuddyIOOut
uPIOOut
CombinedIO
XXX
State
Idle
Pre-
start
Start
Post-
Start
A0
A4
Guard0
D0
D7
...
...
Guard1
Idle
XXX
State
If the interrupt did not get cleared,
then it will activate again here
4. INT disabled, uP initiates read access
uBuddyIOOut
uPIOOut
A0
A4
XXX
...
CombinedIO
A0
A4
XXX
D0
D7
...
...
State
Idle
Pre-
start
Start
Post-
Start
A0
A4
Guard0
D0
D7
...
...
Guard2
Idle
D0
D7
...
P0
P1
P0
P1
P0
P1
P0
P1
P0
P1
P0
P1
ACK0
ACK1
ACK0
ACK1
ACK0
ACK1
RW0
RW1
RW2
A0
A4
XXX
D0
D7
...
A0
A4
XXX
D0
D7
...
...
XXX
Pre-
start
Start
Post-
Start
A0
A4
Guard0
D0
D7
...
...
Guard1
XXX
P0
P1
P0
P1
P0
P1
ACK0
ACK1
ACK0
ACK1
RW0
RW1
RW2
ACK0
ACK1
Guard2
Guard3
Guard2
Guard3
Pendin
g-start
IN
T
Idle
Pendin
g-start
IN
T
3. INT active (low), uP initiates write access
uBuddyIOOut
uPIOOut
CombinedIO
State
If the interrupt did not get cleared,
then it will activate again here
A0
A4
XXX
D0
D7
...
A0
A4
XXX
D0
D7
...
...
XXX
Pre-
start
Start
Post-
Start
A0
A4
Guard0
D0
D7
...
...
Guard1
XXX
P0
P1
P0
P1
P0
P1
ACK0
ACK1
ACK0
ACK1
RW0
RW1
RW2
Guard2
Guard3
Pendin
g-start
IN
T
Idle
Pendin
g-start
IN
T
ACK0
ACK1
RW0
RW1
RW2
Guard3
IO/INT Timing Scenarios
Figure 7. Serial Communication Timing Diagram



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