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VR4102 Datasheet(PDF) 495 Page - NEC

Part # VR4102
Description  64/32-bit Microprocessor
PDF  701 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

VR4102 Datasheet(HTML) 495 Page - NEC

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CHAPTER 25 HSP (MODEM INTERFACE UNIT)
495
(3) During recovery from power-down (VR4102: Fullspeed/Standby/Suspend mode)
Item
OPD# pin
BSC bit
HSP bus state
VR4102 power
CODEC/AFE
power
1
Power down status
L
0
Note
ON
OFF
2
During power-on of CODEC or AFE
H
0
Note
ON
ON
3
When HSP bus’s gate is set to “ON”
H
1
Normal
ON
ON
4
Use HSP unit
H
1
Normal
ON
ON
Note Refer to 2.3 PIN STATUS UPON A SPECIFIC STATE.
(4) When changing to Hibernate mode (the following processing must occur before entering Hibernate mode)
Item
OPD# pin
BSC bit
HSP bus state
VR4102 power
CODEC/AFE
power
1
Operation complete
H
1
Normal
ON
ON
2
When HSP bus’s gate is set to “OFF”
H
0
Note
ON
ON
3
When CODEC or AFE power is set to
“OFF”
L0
Note
ON
OFF
4
Execute HIBERNATE command
L
0
Note
ON
OFF
Note
Refer to 2.3 PIN STATUS UPON A SPECIFIC STATE.
(5) During recovery from Hibernate mode to use HSP unit
Item
OPD# pin
BSC bit
HSP bus state
VR4102 power
CODEC/AFE
power
1
During Hibernate mode
L
0
Note
ON
OFF
2
During power-on of CODEC or AFE
H
0
Note
ON
ON
3
When HSP bus’s gate is set to “ON”
H
1
Normal
ON
ON
4
Use HSP unit
H
1
Normal
ON
ON
Note
Refer to 2.3 PIN STATUS UPON A SPECIFIC STATE.



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