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Technical Reference Manual
TMDXEVM6657L
SPRUHG7 - Revised August 2012
TMDXEVM6657LE
Page 41 / 90
77
TDM_CLKB_P
Telecom Clock B
94
AMC_P9_SRIO2_RXP
SRIO Port 1-RX
78
TDM_CLKB_N
Telecom Clock B
93
AMC_P9_SRIO2_RXN
SRIO Port 1-RX
79
GND
Ground Signal
92
GND
Ground Signal
80
NC
91
AMC_P8_SRIO1_TXP
SRIO Port 0-TX
81
NC
90
AMC_P8_SRIO1_TXN
SRIO Port 0-TX
82
GND
Ground Signal
89
GND
Ground Signal
83
PS0#
Presence 0
88
AMC_P8_SRIO1_RXP
SRIO Port 0-RX
84
VCC12
+12V Power
87
AMC_P8_SRIO1_RXN
SRIO Port 0-RX
85
GND
Ground Signal
86
GND
Ground Signal
3.2.3
COM1, UART 3-Pin Connector
COM1 is 3-pin male connector for RS232 serial interface. A 3-Pin female to 9-Pin DTE female, cable is supplied
with C6657 Lite EVM to connect with the PC.
Table 3.4: UART Connector pin out
Pin #
Signal Name
1
Ground
2
Transmit
3
Receive
3.2.4
COM_SEL1, UART Route Select Connector
UART port can be accessed either through Mini-USB connector (USB1) or through 3-pin RS232 Serial port
header (COM_SEL1). The selection can be made through UART route select connector J13 as follows:
UART over USB Connector (Default): Shunts installed over COM_SEL1.3- COM_SEL1.1 and
COM_SEL1.4 - COM_SEL1.2
UART over 3-Pin Header COM1 - Shunts installed over COM_SEL1.3- COM_SEL1.5 and COM_SEL1.4
- COM_SEL1.6
The pin out for the connector is shown in the figure below:
Table 3.5: UART Path Select Connector pin out
Wire pin1-3 and pin2-4
UART over the XDS100v1
Wire pin3-5 and pin4-6
UART over the 3-pin terminal
Figure 3.3: COM_SEL1 Jumper Settings
Pin #
Signal Name
Pin #
Signal Name
1
FT2232H(USB Chip) Transmit
2
FT2232H(USB Chip) Receive
3
UART Transmit
4
UART Receive
5
MAX3221 Transmit
6
MAX3221 Receive
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