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)： 39/72頁
文件大?。?/td> 1520K
代理商： XR17D158CV
xr
REV. 1.2.1
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
XR17D158
39
N
OTE
:
MCR bits 2 and 3 (OP1 and OP2 outputs) are not available in the XR17D158. They are present for 16C550
compatibility during Internal loopback, see
Figure 18
.
5.8
Registers
5.8.1
Receive Holding Register (RHR) - Read-Only
See
“Section 5.3, Receiver” on page 32
for complete details.
5.8.2
Transmit Holding Register (THR) - Write-Only
See
“Section 5.2, Transmitter” on page 30
for complete details.
5.8.3
Baud Rate Generator Divisors (DLL and DLM) - Read/Write
The Baud Rate Generator (BRG) is a 16-bit counter that generates the data rate for the transmitter and
receiver. The baud rate is programmed through registers DLL and DLM which are only accessible when LCR
bit-7 is set to logic 1. See
“Section 5.1, Programmable Baud Rate Generator” on page 29
for more detail.
0 1 1 1
SPR
R/W
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
User Data
1 0 0 0
FCTR
R/W
TRG
Table
Bit-1
TRG
Table
Bit-0
Auto
RS485
Enable
Invert IR
RX Input
RTS/DTR
Hyst Bit-3
RTS/DTR
Hyst Bit-2
RTS/DTR
Hyst Bit-1
RTS/DTR
Hyst Bit-0
1 0 0 1
EFR
R/W
Auto
CTS/DSR
Enable
Auto
RTS/DTR
Enable
Special
Char
Select
Enable
IER [7:5],
ISR [5:4],
FCR[5:4],
MCR[7:5,2]
MSR[7:4]
Software
Flow Cntl
Bit-3
Software
Flow Cntl
Bit-2
Software
Flow Cntl
Bit-1
Software
Flow Cntl
Bit-0
1 0 1 0
TXCNT
R
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
1 0 1 0
TXTRG
W
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
1 0 1 1
RXCNT
R
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
1 0 1 1
RXTRG
W
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
1 1 0 0
XCHAR
R
0
0
0
0
0
0
Xon Det.
Indicator
Xoff Det.
Indicator
Self-clear
after read
1 1 0 0
XOFF1
W
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
1 1 0 1
XOFF2
W
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
1 1 1 0
XON1
W
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
1 1 1 1
XON2
W
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
T
ABLE
13: UART CHANNEL CONFIGURATION REGISTERS DESCRIPTION.
S
HADED
BITS
ARE
ENABLED
BY
EFR B
IT
-4.
A
DDRESS
A3-A0
R
EG
N
AME
R
EAD
/
W
RITE
B
IT
-7
B
IT
-6
B
IT
-5
B
IT
-4
B
IT
-3
B
IT
-2
B
IT
-1
B
IT
-0
C
OMMENT
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參數(shù)描述
XR17D158CV-0A-EVB 功能描述:界面開發(fā)工具 Supports D158 144 ld TQFP, PCI Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XR17D158CV-F 功能描述:UART 接口集成電路 3.3V-5V 64B FIFO temp 0C to 70C; 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
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
XR17D158IV 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
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