參數(shù)資料
型號: XR17D158CV
廠商: EXAR CORP
元件分類: 微控制器/微處理器
英文描述: UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
中文描述: 8 CHANNEL(S), 6.25M bps, SERIAL COMM CONTROLLER, PQFP144
封裝: 20 X 20 MM, 1.40 MM HEIGHT, TQFP-144
文件頁數(shù): 36/72頁
文件大小: 1520K
代理商: XR17D158CV
XR17D158
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
xr
REV. 1.2.1
36
5.6
Each UART channel provides an internal loopback capability for system diagnostic. The internal loopback
mode
is enabled by setting MCR register bit-4 to logic 1. All regular UART functions operate normally.
Figure 18
shows how the modem port signals are re-configured. Transmit data from the transmit shift register
output is internally routed to the receive shift register input allowing the system to receive the same data that it
was sending. The TX, RTS# and DTR# pins are held HIGH (idle or de-asserted state), and the CTS#, DSR#
CD# and RI# inputs are ignored.
Internal Loopback
F
IGURE
18. I
NTERNAL
L
OOP
B
ACK
TX [7:0]
RX [7:0]
M
L
I
RTS# [7:0]
MCR bit-4=1
VCC
VCC
VCC
Transmit Shift
Register
Receive Shift
Register
CTS# [7:0]
DTR# [7:0]
DSR# [7:0]
RI# [7:0]
CD# [7:0]
OP1#
OP2#
RTS#
CTS#
DTR#
DSR#
RI#
CD#
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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XR17D158CV-F-SIWI 制造商:Exar Corporation 功能描述:FOR WILLIAMS GAMING THEIR CM'S 制造商:EXAR 功能描述:XR17D158CV-F-SIWI 制造商:EXAR 功能描述:FOR WILLIAMS GAMING THEIR CM'S
XR17D158CVTR-F 制造商:Exar Corporation 功能描述:UART 8-CH 64Byte FIFO 5V 144-Pin LQFP T/R 制造商:Exar Corporation 功能描述:XR17D158CVTR-F
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