XR17V352IB-0A-EVB Exar Corporation, XR17V352IB-0A-EVB Datasheet - Page 37
XR17V352IB-0A-EVB
Manufacturer Part Number
XR17V352IB-0A-EVB
Description
EVAL BOARD FOR XR17V352 113BGA
Manufacturer
Exar Corporation
Specifications of XR17V352IB-0A-EVB
Main Purpose
Interface, UART
Embedded
-
Utilized Ic / Part
XR17V352
Primary Attributes
-
Secondary Attributes
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
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REV. 1.0.1
Each UART channel provides an internal loopback capability for system diagnostic. The internal loopback
mode is enabled by setting MCR register bit [4] to a logic 1. All regular UART functions operate normally.
Figure 12
output is internally routed to the receive shift register input allowing the system to receive the same data that it
was sending. The TX pin is held at HIGH or mark condition while RTS# and DTR# are de-asserted. The CTS#,
DSR#, CD# and RI# inputs are ignored.
3.4
Internal Loopback
shows how the modem port signals are re-configured. Transmit data from the transmit shift register
F
IGURE
12. I
NTERNAL
L
OOP
B
ACK
Transmit Shift
Receive Shift
Register
Register
37
CTS#
DSR#
RTS#
DTR#
CD#
RI#
HIGH PERFORMANCE DUAL PCI EXPRESS UART
MCR bit-4=1
OP1#
OP2#
VCC
VCC
VCC
RX [1:0]
TX [1:0]
RTS# [1:0]
CTS# [1:0]
DTR# [1:0]
DSR# [1:0]
RI# [1:0]
CD# [1:0]
XR17V352
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