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ST70235A Fiches technique(PDF) 24 Page - STMicroelectronics

No de pièce ST70235A
Description  ASCOTTM DMT TRANSCEIVER
PDF  28 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST70235A Fiches technique(HTML) 24 Page - STMicroelectronics

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General purpose I/O register (0x40)
Bits from 3 to 15 are reserved
Reset Initialization
The ST70235A supports two reset modes:
– A 'hardware' reset is activated by the RESETB
pin (active low). A hard reset occurs when a low
input value is detected at the RESETB input.
The low level must be applied for at least 1ms to
guarantee a correct reset operation. All clocks
and
power
supplies
must
be
stable
for
200ns prior to the rising edge of the RESETB
signal.
– 'Soft' reset activated by the controller write
access to a soft reset configuration bit. The reset
process takes less than 10000 MCLK clock
cycles.
U_Txdata[5]
IO77
I
U_Txdata[4]
IO78
I
U_Txdata[3]
IO79
I
U_Txdata[2]
IO80
I
U_Txdata[1]
IO82
I
U_Txdata[0]
IO83
I
U_Txaddr[4]
IO84
I
U_Txaddr[3]
IO85
I
U_Txaddr[2]
IO87
I
U_Txaddr[1]
IO88
I
U_Txaddr[0]
IO89
I
Reserved 0
IO90
O
Reserved 1
IO92
O
Reserved 2
IO93
O
Reserved 3
IO94
O
Reserved 4
IO96
O
Reserved 5
IO97
O
Reserved 6
IO98
O
Reserved 7
IO99
O
Reserved 8
IO100
NONE
Reserved 9
IO101
O
Reserved 10
IO103
I
Reserved 11
IO104
I
Reserved 12
IO105
I
Reserved 13
IO106
I
Reserved 14
IO107
O
Reserved 15
IO110
O
Reserved 16
IO111
O
TDI
IO112
NONE
TDO
IO113
NONE
TMS
IO114
NONE
TCK
IO116
NONE
TRSTB
IO118
NONE
Testse
IO119
C
GP_Out
IO120
O
Table 8 : Boundary Scan Chain Sequence
Signal
Name
Sequence
Number
BS
Type
Pdown
IO121
O
Afrxd[0]
IO123
I
Afrxd[1]
IO124
I
Afrxd[2]
IO125
I
Afrxd[3]
IO126
I
Clwd
IO128
I
Mclk
IO129
C
Ctrldata
IO130
O
Disable_Comp
IO135
I
Iddq
IO138
C
AFTXD[0]
IO139
NONE
AFTXD[1]
IO140
NONE
AFTXD[2]
IO142
NONE
AFTXD[3]
IO143
NONE
Field
Type
Position
Bits
Length
Function
GP_IN
R
[0,1]
2
Sampled
level on pins
GP_IN
GP_OUT
RW
[2]
1
Output level
on pins
GP_OUT
Table 8 : Boundary Scan Chain Sequence
Signal
Name
Sequence
Number
BS
Type



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