參數(shù)資料
型號: VT8231
廠商: Electronic Theatre Controls, Inc.
元件分類: 晶體
英文描述: CRYSTAL 8.00MHZ 18PF SMD
中文描述: 南橋伏特,PC99柔順
文件頁數(shù): 20/132頁
文件大小: 1210K
代理商: VT8231
VT8231
Preliminary Revision 0.8
October 29, 1999
-14-
Pinouts
7HFKQRORJLHV,QF
:H &RQQHFW
Universal Serial Bus Interface
Signal Name
Pin #
I/O
Signal Description
USBP0+
USBP0-
USBP1+
USBP1-
USBP2+
USBP2-
USBP3+
USBP3-
USBCLK
USBOC0#
USBOC1#
USBOC2#
/ LA20 / GPO20
USBOC3#
/ LA21 / GPO21
B20
A20
B19
A19
B18
A18
C17
B17
C15
A17
D16
W13
Y13
IO
IO
IO
IO
IO
IO
IO
IO
I
I
I
USB Port 0 Data +
USB Port 0 Data -
USB Port 1 Data +
USB Port 1 Data -
USB Port 2 Data +
USB Port 2 Data -
USB Port 3 Data +
USB Port 3 Data -
USB Clock.
48MHz clock input for the USB interface
USB Port 0 Over Current Detect.
Port 0 is disabled if this input is low.
USB Port 1 Over Current Detect.
Port 1 is disabled if this input is low
USB Port 2 Over Current Detect.
Port 2 is disabled if this input is low.
USB Port 3 Over Current Detect.
Port 3 is disabled if this input is low.
I / IO / O
I / IO / O
System Management Bus (SMB) Interface (I
2
C Bus)
Signal Name
Pin #
I/O
Signal Description
SMB / I
2
C Channel 1 Clock.
SMB / I
2
C Channel 2 Clock.
SMB / I
2
C Channel 1 Data.
SMB / I
2
C Channel 2 Data.
SMB Alert.
(System Management Bus I/O space Rx08[3] = 1) When the
chip is enabled to allow it, assertion generates an IRQ or SMI interrupt or a
power management resume event. The same pin is used as General Purpose
Input 6 whose value is reflected in Rx48[6] of function 4 I/O space
SMBCK1
SMBCK2
/ GPIO27
SMBDT1
SMBDT2
/ GPIO26
SMBALRT#
/ GPI7
R3
R1
T1
R2
T2
IO
IO / IO
IO
IO / IO
I / I
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