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VR4102 데이터시트(PDF) 71 Page - NEC

부품명 VR4102
상세설명  64/32-bit Microprocessor
PDF  701 Pages
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제조업체  NEC [NEC]
홈페이지  http://www.nec.com/
Logo NEC - NEC

VR4102 데이터시트(HTML) 71 Page - NEC

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CHAPTER 2 PIN FUNCTIONS
71
2.2.12 HSP MODEM Interface Signals
Table 2-12. HSP MODEM Interface Signals
Signal
I/O
Function
IRING
I
RING signal detect signal. This pin becomes active when the RING signal is detected.
ILCSENSE
I
Handset detect signal.
OFFHOOK
O
On-hook relay control signal.
MUTE
O
Modem speaker mute control signal.
AFERST#
O
CODEC reset signal.
SDI
I
Serial input signal from CODEC.
FS
I
Frame synchronization signal from CODEC.
SDO
O
Serial output signal to CODEC.
HSPSCLK
I
Operation clock input of modem interface block for CODEC.
TELCON
O
Handset relay control signal.
HC0
O
CODEC control signal.
HSPMCLK
O
Clock output to CODEC.
OPD#
O
Use this pin for controlling power of CODEC and DAA. This signal is set as active when to set power
supply to them ON.
2.2.13 LED Interface Signal
Table 2-13. LED Interface Signal
Signal
I/O
Description of function
LEDOUT#
O
This is an output signal for lighting LEDs.



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