參數(shù)資料
型號: GL9714
廠商: Genesys Logic, Inc.
英文描述: PCI ExpressTM PIPE x4 PHY
中文描述: 管x4的PCI ExpressTM物理層
文件頁數(shù): 17/46頁
文件大?。?/td> 527K
代理商: GL9714
GL9714 PCI Express
TM
PIPE x4 PHY
2004-2007 Genesys Logic Inc. - All rights reserved.
Page 17
for calibrating the on-chip termination resistors
TXNA~D
A14, A10, A6, A2
O Transmitted serial output, complement
TXPA~D
B14, B10, B6,
B2
O Transmitted serial output, true
Other Signals
Pin Name
I/O
Standard
Pin#
Type
Description
REFCLKP
Analogue
A1
I
Reference clock signal
REFCLKN
Analogue
B1
I
Reference clock signal
OSC25MO
Crystal
C1
O
Connect to 25MHz crystal when using
crystal as the reference clock source
Connect to 25MHz crystal/oscillator when
using crystal/oscillator as the reference
clock source
OSC25MI
Crystal/
Oscillator
D1
I
TESTC/SMC LVCMOS2
U11
I
Test clock/SMBus clock
TESTD/SMD LVCMOS2
T10
I/O Test data/SMBus data
SCC
LVCMOS2
R10
I
Configures clock input source
When SCC=1, the chip clock sources from a pair
of differential signals, REFCLKP and REFCLKN,
with a nominal frequency of 100 MHz.
When SCC=0, the chip clock sources from a
crystal at 25MHz.
Operational Mode of the GL9714
00 4 lanes, 8 bit mode
01 2 lanes, 16 bit mode
10 4 lanes, 10 bit mode
11 Internal use only
OPMODE[1:0]
LVCMOS2
U10, R9
I
NC
-
C3, C5, C6,
C9,
C11, C13, D6,
D10, D11,
D12,
K17
-
No connection
Table 3.5 - Parameter of Buffer I/O
V
IH
(Input High Voltage,
V)
V
IL
(Input Low Voltage,
V)
V
OH
(Output High Voltage,
V)
V
OL
(Output Low Voltage,
V)
Buffer type
Min
Norm
Max
Min
Norm
Max
Min
Norm
Max
Min
Norm
Max
LVCMOS2
1.7
-
-
-
-
0.7
2.4
-
-
-
-
0.4
SSTL2
1.57
-
-
-
-
0.93
1.76
-
-
-
-
0.74
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