104
8575
8575
A N/B Maintenance
A N/B Maintenance
LPC Interface
Name
Pin Attr
Signal Description
LAD[3:0]
I/O
3.3V/5V-M
LPC Address/Data Bus:
LPC controller drives these four pins to transmit LPC command,
address, and data to LPC device.
LDRQ#
I
3.3V/5V-M
LPC DMA Request 0:
This pin is used by LPC device to request DMA cycle.
LDRQ1# /
GPIO1
I
I/O
3.3V/5V-M
LPC DMA Request 1:
This pin is used by LPC device to request DMA cycle.
LFRAME#
O
3.3V -M
LPC Frame:
This pin is used to notify LPC device that a start or a abort LPC
cycle will occur.
SIRQ
I/O
3.3V/5V -M
I/O
3.3V/5V -M
TRC Interface
Name
Pin Attr
Signal Description
BATOK
I
3.3V -RTC
Battery Power OK:
When the internal RTC is enabled, this signal is used to indicate
that the power of RTC well is stable. It is also used to reset the
logic in RTC well. If the internal RTC is disabled, this pin
should be tied low.
OSC32KHI
I
3.3V-RTC
RTC 32.768 KHz Input:
When internal RTC is enabled, this pin provides the 32.768
KHz clock signal from external crystal or oscillator.
OSC32KHO
O
<3.3V -RTC
RTC 32.768 KHz Output:
When internal RTC is enabled, this pin should be connected
with the other end of the 32.768 KHz crystal or left unconnected
if an external oscillator is used.
PWROK
I
3.3V-RTC
Main Power OK
:
A high-level input to this signal indicates the power being
supplied to the system is in stable operating state. During the
period of PWROK being low, PCIRST# will all be asserted
until after PWROK goes high for 12 ms.
AC’97 Interface
Name
Pin Attr
Signal Description
AC_BIT_CLK
I
3.3V/5V -M
AC’97 Bit Clock:
This signal is a 12.288MHz serial data clock, which is generated
by primary Codec.
AC_RESET#
O
3.3V -AUX
AC’97 Reset:
Hardware reset signal for external Codecs.
AC_SDIN0
I
3.3V/5V -AUX
AC’97 Serial Data Input :
Serial data input from primary Codec.
AC_SDIN1
I
3.3V/5V -AUX
AC’97 Serial Data Input:
Serial data input from secondary Codec. When Modem Codec is
used, this pin dedicate to Modem Serial data input.
AC_SDIN[3:2]/
GPIO[10:9]
I
I/O
3.3V/5V -AUX
AC’97 Serial Data Input:
Serial data input from third and forth Audio Codec.
AC_SDOUT
O
3.3V -M
AC’97 Serial Data Output:
Serial data output to Codecs.
AC_SYNC
O
3.3V -M
AC’97 Synchronization:
This is a 48KHz signal, which is used to synchronize the Codecs
USB Interface
Name
Pin Attr
Signal Description
USBCLK48M
I
3.3V/5V -M
USB 48 MHz clock input:
This signal provides the fundamental clock for the USB
Controller.
OC[0:5]#
I/O
3.3V/5V - AUX
USB Port 0-5 Overcurrent Detection:
OC[0:5]# are used to detect the overcurrent condition of USB
Ports 0-5.
UV[2:0]+,
UV[2:0]-
I/O
3.3V - AUX
USB Port
[
2:0
]
Differential
:
These differential pairs are used to transmit Data/Address
/Command signals for ports 0-2. (USB controller 1)
UV[5:3]+,
UV[5:3]-
I/O
3.3V - AUX
USB Port [5:3] Differential
:
These differential pairs are used to transmit Data/Address/
Command signals for ports 3-5. (USB controller 2)
5.3 SiS961 MuTIOL Media I/O Controller
