参数资料
型号: XR16M598IQ100-F
厂商: Exar Corporation
文件页数: 15/58页
文件大小: 0K
描述: IC UART FIFO 16B OCTAL 100QFP
标准包装: 66
特点: *
通道数: 8
FIFO's: 16 字节
规程: RS485
电源电压: 1.62 V ~ 3.63 V
带自动流量控制功能:
带IrDA 编码器/解码器:
带故障启动位检测功能:
带调制解调器控制功能:
安装类型: 表面贴装
封装/外壳: 100-BQFP
供应商设备封装: 100-QFP(14x20)
包装: 托盘
XR16M598
22
1.62V TO 3.63V HIGH PERFORMANCE OCTAL UART WITH 16-BYTE FIFO
REV. 1.0.0
2.16
Internal Loopback
Each UART channel provides an internal loopback capability for system diagnostic purposes. The internal
loopback mode is enabled by setting MCR register bit-4 to logic 1. All regular UART functions operate normally.
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 pin is held at HIGH or mark condition while RTS# and DTR# are de-asserted (HIGH),
and CTS#, DSR# CD# and RI# inputs are ignored.
FIGURE 11. INTERNAL LOOP BACK
TX [7:0]
RX [7:0]
M
odem
/
G
ener
al
Pur
pose
Contr
o
l
Log
ic
In
te
rn
al
Bu
sL
in
es
an
d
Co
n
tro
lSig
n
als
RTS# [7:0]
MCR bit-4=1
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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