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ST70135 Datasheet(PDF) 8 Page - STMicroelectronics

Part # ST70135
Description  ASCOTTM DMT TRANSCEIVER
PDF  29 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST70135 Datasheet(HTML) 8 Page - STMicroelectronics

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I/O DRIVER FUNCTION
PIN SUMMARY
Driver
Function
BD4CR
CMOS bidirectional, 4mA, slew rate control
BD8SCR
CMOS bidirectional, 8mA, slew rate control, Schmitt trigger
IBUF
CMOS input
IBUFDQ
CMOS input, pull down, IDDq control
IBUFUQ
CMOS input, pull up, IDDq control
Mnemonic
Type
BS Type Signals
Function
Power Supply
VDD
(VSS + 3.3V) Power Supply
VSS
0V Ground
ATC INTERFACE
ALE
I
C
1
Used to latch the address of the internal register to be
accessed
PCLK
I
I
1
Processor clock
CSB
I
I
1
Chip selected to respond to bus cycle
BE1
I
I
1
Address 1 (not multiplexed)
WR_RDB
I
I
1
Specifies the direction of the access cycle
RDYB
OZ
O
1
Controls the ATC bus cycle termination
INTB
O
O
1
Requests ATC interrupt service
AD
IO
B
16
Multiplexed Address/Data bus
OBC_TYPE
I-PD
I
1
Select between i960 (0) or generic (1) controller interface
TEST ACCESS PART INTERFACE
TDI
I-PU
1
Refer to section
TDO
OZ
1
TCK
I-PD
1
TMS
I-PU
1
TRSTB
I-PD
1
ANALOG FRONT END INTERFACE
AFRXD
I
I
4
Receive data nibble
AFTXD
O
O
4
Transmit data nibble
AFTXED
O
O
4
Transmit echo nibble
CLWD
I
I
1
Start of word indication
PDOWN
O
O
1
Power down analog front end
CTRLDATA
O
O
1
Serial data transmit channel
MCLK
I
C
1
Master cloc



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