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參數(shù)資料
| 型號(hào)： | ST70137 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | UNICORNTM PCI & USB CONTROLLERLESS ADSL DMT TRANSCEIVER |
| 中文描述： | UNICORNTM的PCI |
| 文件頁數(shù)： | 12/22頁 |
| 文件大小： | 140K |
| 代理商： | ST70137 |
ST70137
12/22
CLOCK & RESET INTERFACE
MCLK
I
I
-
35.328 MHz Master Input Clock.
RSTN
I
I
L
Asynchronous
USB_PCI_SEL = ‘1’).
Master
Input
Reset
(active
if
AFE INTERFACE
AFETXD[3:0]
O
L
-
AFE Transmit Data Nibble Bus
The signal changes are synchronized to the rising edge of
MCLK clock signal.
AFERXD[3:0]
I
I
-
AFE Receive Data Nibble Bus
The signal changes are synchronized to the rising edge of
MCLK clock signal.
CLWD
I
I
H
Start of word indication
This signal is the word clock used to enable shift of data.
It occurs on CTRLDOUT signal to indicate the first data of
the nibble sequence. The CLWD frequency is equal to
MCLK/4.
CTRLDOUT
O
H
L
Transmit Control Word Data to AFE
The data is shifted out from internal register on the rising
edge of MCLK during CLWD assertion.
AFESEL
I
I
-
Select ST-70136 [0] or ADSL_C [1].
AFERST
O
L
L
AFE Reset
This
(USB_PCIN_SEL
(USB_PCIN_SEL = [1]) if AFESEL = [0], or to the Sachem
GPOUT register if AFESEL = [1]. Not usable in USB
mode.
signal
is
connected
=
to
the
internal
UCFW
PCFW
registers
[0])
or
AFEWR / GPIO[5]
I/O
I
L/-
AFE Write control output signal
(AFESEL = 0), or Gen-
eral Purpose I/O pin. The selection is performed writing
the proper bit in the PCFW or UCFW (depending on sta-
tus of USB_PCIN_SEL pin) registers. At the power-on or
hardware reset the GPIO[5] function is selected.
CTRLDIN / GPIO[4]
I
I
L/-
Receive Control word data from AFE
(AFESEL = 0), or
General Purpose I/O pin. The selection is performed writ-
ing the proper bit in the PCFW or UCFW (depending on
status of USB_PCIN_SEL pin) registers. At the power-on
or hardware reset the GPIO[4] function is selected ACTD I
I H Activation Tone Detect [1] (or Wake Up signal).
When PCI IF has been selected, the Low to High transi-
tion of ACTD asserts the PCI_PMEN signal (if this last
has been enabled) and generates an interrupt event.
When USB IF has been selected, the Low to High transi-
tion of ACTD de-asserts the SUSPEND signal and
re-enable the internal ST70137 activity.
SUSPEND
O
L
H
Suspend Mode Indication.
SUSPENDN
O
H
L
Suspend Mode Indication Negated.
PWDN
O
H
H
AFE Power Down.
LDPWDN
O
H
H
Line Driver Power Down [1].
Signal Name
Direction
Init Status
Polarity
Signal Description
PIN DESCRIPTION
(continued)
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| ST70137TQFP | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:UNICORNTM PCI & USB CONTROLLERLESS ADSL DMT TRANSCEIVER |
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