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TB-KU-xxx-ACDC8K Hardware User Manual
24
Rev. 1.03
7.3.2. GTH Clocks
The diagram below represents the GTH clock architecture present in the TB-KU-xxx-ACDC8K board.
Some clocks are internally driven by the system while others can be externally provided through MMCX
connectors.
Quad227
Quad226
GTREFCLK_0_P/N
GTREFCLK_1_P/N
GTREFCLK_0_P/N
GTREFCLK_1_P/N
FMC2
GBTCLK0_M2C_P
GBTCLK1_M2C_P
GTREFCLK_0_P/N
GTREFCLK_1_P/N
GTREFCLK_0_P/N
GTREFCLK_1_P/N
FMC3
GBTCLK0_M2C_P
GBTCLK1_M2C_P
Quad127
Quad126
GTREFCLK_0_P/N
GTREFCLK_1_P/N
FMC4
GBTCLK0_M2C_P
GBTCLK1_M2C_P
GTREFCLK_0_P/N
GTREFCLK_1_P/N
Quad229(085 Only)
Quad228
GTREFCLK_0_P/N
GTREFCLK_1_P/N
FMC5
GBTCLK0_M2C_P
GBTCLK1_M2C_P
GTREFCLK_0_P/N
GTREFCLK_1_P/N
Quad231(085 Only)
Quad230(085 Only)
GTREFCLK_0_P/N
GTREFCLK_1_P/N
FMC6
GBTCLK0_M2C_P
GBTCLK1_M2C_P
Quad128
GTREFCLK_0_P/N
GTREFCLK_1_P/N
Quad232(085 Only)
Quad225
Quad224
GTREFCLK_0_P/N
GTREFCLK_1_P/N
GTREFCLK_0_P/N
GTREFCLK_1_P/N
FMC1
GBTCLK0_M2C_P
GBTCLK1_M2C_P
MMCX
MMCX
MMCX
MMCX
MMCX
MMCX
PLL
IDT
ICS849N202I
Fanout Buffer
IDT
ICS854S006I
2
DIP-SW: SW2
【
DIP-SW : OFF
】
CLK_GLOBAL_SEL: 0
FeedBack input Clock => 25MHz(OSC)
CLK_GLOBAL_CONFIG: 0
Output Clock => 156.25MHz
CLK_GLOBAL_OE: 0
No CLK_PLL_P/N to Fanout Buffer
CLK_PLL_BYPASS: 0
PLL Mode (default)
【
DIP-SW : ON
】
CLK_GLOBAL_SEL: 1
FeedBack input Clock => From FPGA
CLK_GOBAL_CONFIG: 1
Output Clock => 148.50MHz
CLK_GLOBAL_OE: 1
CLK_PLL_P/N output to Fanout Buffer
CLK_PLL_BYPASS: 1
PLL Bypassed
40MHz (X
’tal)
TXC
7M-40.000MAHE-T
25MHz (OSC)
TXC
7C-25.000MBA-T
In the
case of
060
GTH Assignment
FMC1(GTH8CH)
: Q 225
FMC2(GTH8CH)
: Q 227
FMC3(GTH8CH)
: Q 127
FMC4(GTH4/8CH)
: Q 229(085 Only)
FMC5(GTH0/8CH)
: Quad230(085 Only) + 231(085 Only)
FMC6(GTH4CH)
: Quad128
SFP+(GTH4CH)
: Quad232(085 Only)
156.25MHz (LVDS)
IDT
4MA156250Z4AACUGI
CLK_SFP_QUAD232
CLK_MMCX_QUAD232
Q
4
Q
3
Q
2
Q
1
Q
0
CLK_QUAD231
CLK_MMCX_QUAD231
CLK_FMC_5_GTH_REF0
CLK_FMC_5_GTH_REF1
CLK_QUAD229
CLK_MMCX_QUAD229
CLK_FMC_4_GTH_REF0
CLK_FMC_4_GTH_REF1
CLK_QUAD227
CLK_MMCX_QUAD227
CLK_FMC_2_GTH_REF0
CLK_FMC_2_GTH_REF1
CLK_QUAD225
CLK_MMCX_QUAD225
CLK_FMC_1_GTH_REF0
CLK_FMC_1_GTH_REF1
CLK_FMC_6_GTH_REF0
CLK_FMC_6_GTH_REF1
CLK_QUAD130
CLK_MMCX_QUAD130
CLK_FMC_3_GTH_REF0
CLK_FMC_3_GTH_REF1
Q
5
XTAL
CLK0
CLK1
Bank64
(HR)
CLK_EXT_REF
G
C
B
a
n
k
6
7
Q0_P/N
CLK_PLL_P/N
CLK_P/N
Figure 7-8 GTH and MMCX Clocks Architecture