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參數(shù)資料
| 型號： | XR16V798IQ-0A-EVB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 13/56頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR XR16V798-A 100QFP |
| 設(shè)計(jì)資源： | XR17V798/794 Eval Board Schematic |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
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XR16V798
20
HIGH PERFORMANCE 2.25V TO 3.6V OCTAL UART WITH FRACTIONAL BAUD RATE
REV. 1.0.1
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.
3.0
XR16V798 REGISTERS
The XR16V798 octal UART register set consists of the Device Configuration Registers that are accessible
directly from the data bus for programming general operating conditions of the UARTs and monitoring the
status of various functions. These functions include all 8 channel UART’s interrupt control and status, 16-bit
general purpose timer control and status, sleep mode, soft-reset, and device identification and revision. Also,
each UART channel has its own set of internal UART Configuration Registers for its own operation control,
status reporting and data transfer. These registers are mapped into a 256-byte of the data memory address
space. The following paragraphs describe all the registers in detail.
FIGURE 11. INTERNAL LOOP BACK
TX [7:0]
RX [7:0]
M
odem
/G
ener
a
l
Pur
p
ose
Co
ntr
o
l
L
ogic
Inter
n
a
lBu
s
Lines
a
nd
Contr
o
lS
igna
ls
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16V798IQ-0B-EVB | 功能描述:UART 接口集成電路 Supports V798 100 ld QFP,PCI Interface RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR16V798IQ-F | 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR16V798IQTR-F | 制造商:Exar Corporation 功能描述:UART 8-CH 64Byte FIFO 2.5V/3.3V 100-Pin PQFP T/R |
| XR-1790 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Audio Schematic |
| XR17C152 | 制造商:EXAR 制造商全稱:EXAR 功能描述:5V PCI BUS DUAL UART |
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