Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
0
1
GPIO19
(BOOT_SEL3)
0
0 SPI FLASH or EEPROM(CS1 must be used for boot device)
0
1 1
0
GPIO3
(BOOT_SEL1)
UART_TX
(BOOT_SEL0)
1
Strap Pin Setting Table
SPI NAND (SLC type, ECC in NAND device)
1
0
1
1
0
0
ONFI compliant NAND
BE-NAND
OFF = 0 ; ON = 1
BOOT_SEL2
BOOT_SEL3
ENDIAN_SEL
VDSL DGSP Reset Buffer
Green Line need to connect
to GND directly.
EJTAG
1
Boot Source
0
0
0
0
UART w/o EEPROM
1
0
0
1
0
1
GPIO14
(BOOT_SEL2)
Legacy NAND (up to 2K page)
UART with EEPROM
1
1
1
0
0
1
All other options are reserved/not used.
Generic(non-ONFI) NAND
Endian SEL (For CPU)
0:LITTLE ENDIAN
1:BIG ENDIAN(Default)
NOTE:
Boot Strap
BOOT_SEL1
BOOT_SEL0
SENSE+/- routing on PCB
should be differentially and
Keep distance to switching
sensitive component,eg.
inductors.
AND
Gate
From button
to RX350
If DGSP reset then WiFi reset
Boot from SPI Flash
Manual Reset
WPS Button
2-Layer PUSH
POR_OUT Buffer
Reset
IC
UART
for EVB FW USE
DrayTek ICE
for 654 EVB FW
for 654 EVB FW
+3V3
GND
+3V3
+3V3
+3V3
GND
VDD33
+3V3
GND
+3V3
GND
GND
GND
GND
GND
GND
+3V3
GND
GND
GND
GND
GND
GND
+3V3
+3V3
GNDGND
+3V3
+3V3
GND
+3V3
+3V3
GND
+3V3
+3V3
GND
+3V3
+3V3
+3V3
GND
GND
SENSE- [32]
SENSE+ [32]
SLIC_CLKO_GNT[12]
SLIC_TX[12]
PCIE1_RST_M [16]
SLIC_RESET_M [12]
DGSP_RST[13,27]
PCIE2_RST_M[26]
LED_ST[10]
LED_D[10]
LED_SH[10]
POR_OUT[9]
SPI_DIN[8,10]
SPI_Flash_CS1[8]
SPI_DOUT[8,10]
SPI_CLK[8,10]
PCIE1_RST [10,16]
PCIE2_RST[10,16]
SFP_I2C_DATA[24,33]
SFP_I2C_CLK[24,33]
POR_OUT_4 [10]
USB2_PWR_CTRL [9]
USB1_PWR_CTRL [9,26]
GPIO18_RST[8,10]
GPIO17_RST[8,10]
GPIO16_RST[8,10]
SLIC_CLK[12]
SLIC_RX[12]
RST_TO_DEFAULT_AXE[16]
PCIE1_RST_N_AXE[12]
Title
Size Document Number Rev
Date: Sheet of
GRX350_GPIO
6B
V2766AX
<OrgName>
Custom
7 34Thursday, July 21, 2022
Title
Size Document Number Rev
Date: Sheet of
GRX350_GPIO
6B
V2766AX
<OrgName>
Custom
7 34Thursday, July 21, 2022
Title
Size Document Number Rev
Date: Sheet of
GRX350_GPIO
6B
V2766AX
<OrgName>
Custom
7 34Thursday, July 21, 2022
S3
WPS Button / SW
1 2
3 4
C16
NULL/10uF
TP51
R56
10k,1%
R279 22K
TP47
R58 Null/1k,1%
TP8
R66 Null/0
U15A
74LVC08/SO
1
2
3
D3
SK24A
21
R239
10k,1%
N.M.
R128
Null/1k,1%
R235
NULL/1k,1%
R244 10k,1%
U15C
74LVC08/SO
9
10
8
C104
0.1uF/0603
C17 NULL/470pF
R237 Null/10k,1%
Y1
40Mhz SMD 3.2x2.5 10ppm
13
2 4
TP39
C29
100nF
R67
10K
R171 33
R236
10k,1%
R50 0R
R64 33R
1 2
R73 0R
TP48
TP41
R59 10k,1%
R120
1k,1%
TP6
R53 0
R243 Null/10k,1%
R133
1k,1%
R52
47k,1%
U15B
74LVC08/SO
4
5
6
C69
100nF
R72 0R
N.M.
R74
Null/0R
TP11
R174
4.7K
R60
Null/10k,1%
TP46
TP9
TP7
R231
1k,1%
N.M.
R135
Null/1k,1%
R61 Null/10k,1%
R62
(V)220ohm/Bead
1 2
TP40
C19 NULL/33pF
R127
1k,1%
R238 1k,1%
R175 33
C24
20pF
U21
MIC809SU
GND
1
/RST
2
VCC
3
R65 0/0402
R63
(V)220ohm/Bead
1 2
R79
1k,1%
R275
1K/0603
R48 NULL/0R
N.M.
R71
Null/0R
N.M.
R54
Null/0R
J8
Header 1x4/2.54mm
P1
1
P3
3
P2
2
P4
4
S2
Default Button / SW
1 2
3 4
R172
10K
C300
0.1uF/25V
TP49
R136
1k,1%
R75
10k,1%
C165 0.1uF/25V
R122
1k,1%
N.M.
R49 Null/0R
C23
20pF
U5F
GRX350
XTAL1
AC10
GPIO42
E20
GPIO43
D20
GPIO3/CLKO25
Y18
GPIO6/LED_SH/PHY4_LED0
Y9
GPIO5/LED_D/PHY3_LED0
AA8
D1V15SN
J8
POR
AA9
HRST
AA10
GPIO21/I2C_SDA
W10
GPIO4/LED_ST/PHY2_LED0
AB8
GPIO17/SPI0_TX
W6
GPIO22/I2C_SCL
W11
GPIO15/SPI0_CS1
Y5
GPIO14/SPI1_CS0/PHT6F_LED0
AB7
GPIO11/SPI1_RX/SPI0_CS6
AA7
UART0_TX
W9
GPIO10/SPI1_TX/SPI0_CS4
AB6
GPIO19/SPI1_CLK/PHY3_LED1
W8
TDO/EJ_TDO
E8
TCK/EJ_TCK
D8
UART1_TX
R8
GPIO16/SPI0_RX
W7
TDI/EJ_TDI
C9
UART0_RX
Y8
UART1_RX
P8
TMS/EJ_TMS
D9
TRST/EJ_TRST
C10
GPIO18/SPI0_CLK
Y6
GPIO1/SSI_RST
AA5
GPIO9/PHY5_LED0
AB4
GPIO8/CLK_O8/FL_CS0/PHY2_LED1
AB5
GPIO0
AB3
XTAL2
AB10
GPIO36/SSI_CLKI
AC4
GPIO35/SSI_RX
AA6
GPIO34/SSI_TX
Y7
GPIO7/CLKO40/USB_OC0_INT
Y10
GPIO2/USB_OC1_INT
Y11
D1V15SP
H8
W_GPIO0
T11
CLK_MD
AB9
TEST_N
AB11
TEST_P
AC11
C107
0.1uF/0603
U15D
74LVC08/SO
12
13
11
U3
NULL/SN74HC08/SSOP14
1A
1
2B
5
3B
10
3A
9
3Y
8
1Y
3
2Y
6
GND
7
1B
2
2A
4
4Y
11
4A
12
4B
13
Vcc
14
TP10
S3-1
TACT SWITCH CAP
TP38
R240
4.7k,1%
J5
Null/HEADER/2*5P/2.54
P1
1
P2
2
P3
3
P4
4
P5
5
P6
6
P7
7
P8
8
TP50
R245
33R
1 2
R176
10K
UART0_TX
EJTAG_TMS_U
LED_D
GPIO5
RST_TO_DEFAULT_1
EJTAG_TDI_U
EJTAG_TDO_U
EJTAG_TMS_U
EJTAG_TCK_U
EJTAG_TDO_U
EJTAG_TCK_U
EJTAG_TRST_U
EJTAG_TDI_U
GPIO18
GPIO17
GPIO16
UART0_RX
SENSE+
EJTAG_TRST_U
GPIO9
DGSP_RST
SLIC_RESET
RST_TO_DEFAULT
RST_TO_DEFAULT_1
DGSP_RST
PCIE2_RST
PCIE2_RST_M
PCIE1_RST
PCIE2_RST_MDGSP_RST
PCIE2_RST
DGSP_RST
PCIE1_RST_M
DGSP_RST
PCIE1_RST
DGSP_RST
SLIC_RESET
SLIC_TX
SLIC_RX
SLIC_CLKO_GNT
SLIC_TX
SLIC_CLKO_GNT
SLIC_RESET_M
GPIO14
GPIO19
GPIO3
GPIO3
POR_OUT
RST_TO_DEFAULT
DGSP_RST SLIC_RESET_M
SLIC_RESET
PCIE1_RST_M
NETC290_1
USB1_CTRL
GPIO4
GPIO6
USB2_CTRL
GPIO21
UART1_TX
UART1_RX
GPIO15
DGSP_RST
UART1_TX
GPIO5
LED_D
GPIO19
GPIO14
RST_TO_DEFAULT_1
GPIO22
POR_OUT
S1_Buttom
WPS
RST_TO_DEFAULT
POR_OUT POR_OUT_4
RESET_IN
RESET_IN
+3V3
POR_OUT
USB1_CTRL
USB2_CTRL
POR_OUT
POR_OUT
POR_OUT_4
WPS
UART0_TX
UART0_RX
GPIO34
GPIO17
GPIO18
GPIO16
UART0_RX
RESET_IN
EJTAG_TRST_U
EJTAG_TDO_U
EJTAG_TDI_U
EJTAG_TMS_U EJTAG_TCK_U
S1_TOP
SENSE-