REV. 5.0.2 24 4.0 INTERNAL REGISTER DESCRIPTIONS 4.1 Receive Holding Register (RHR) " />
參數(shù)資料
型號(hào)： ST16C654IQ64-F
廠商： Exar Corporation
文件頁(yè)數(shù)： 17/51頁(yè)
文件大小： 0K
描述： IC UART FIFO 64B QUAD 64LQFP
標(biāo)準(zhǔn)包裝： 160
特點(diǎn)： *
通道數(shù)： 4，QUART
FIFO's： 64 字節(jié)
規(guī)程： RS232
電源電壓： 2.97 V ~ 5.5 V
帶自動(dòng)流量控制功能： 是
帶IrDA 編碼器/解碼器： 是
帶故障啟動(dòng)位檢測(cè)功能： 是
帶調(diào)制解調(diào)器控制功能： 是
帶CMOS： 是
安裝類型： 表面貼裝
封裝/外殼： 64-LQFP
供應(yīng)商設(shè)備封裝： 64-LQFP（10x10）
包裝： 托盤
其它名稱： 1016-1273
ST16C654/654D
xr
2.97V TO 5.5V QUAD UART WITH 64-BYTE FIFO
REV. 5.0.2
24
4.0 INTERNAL REGISTER DESCRIPTIONS
4.1
Receive Holding Register (RHR) - Read- Only
4.2
Transmit Holding Register (THR) - Write-Only
4.3
Interrupt Enable Register (IER) - Read/Write
The Interrupt Enable Register (IER) masks the interrupts from receive data ready, transmit empty, line status
and modem status registers. These interrupts are reported in the Interrupt Status Register (ISR).
4.3.1
IER versus Receive FIFO Interrupt Mode Operation
When the receive FIFO (FCR BIT-0 = 1) and receive interrupts (IER BIT-0 = 1) are enabled, the RHR interrupts
(see ISR bits 2 and 3) status will reflect the following:
A. The receive data available interrupts are issued to the host when the FIFO has reached the programmed
trigger level. It will be cleared when the FIFO drops below the programmed trigger level.
B. FIFO level will be reflected in the ISR register when the FIFO trigger level is reached. Both the ISR register
status bit and the interrupt will be cleared when the FIFO drops below the trigger level.
C. The receive data ready bit (LSR BIT-0) is set as soon as a character is transferred from the shift register to
the receive FIFO. It is reset when the FIFO is empty.
Enhanced Registers
0 1 0
EFR
RD/WR
Auto
CTS#
Enable
Auto
RTS#
Enable
Special
Char
Select
Enable
IER [7:4],
ISR [5:4],
FCR[5:4],
MCR[7:5]
Soft-
ware
Flow
Cntl
Bit-3
Soft-
ware
Flow
Cntl
Bit-2
Soft-
ware
Flow
Cntl
Bit-1
Soft-
ware
Flow
Cntl
Bit-0
LCR=0XBF
1 0 0
XON1 RD/WR
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
1 0 1
XON2 RD/WR
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
1 1 0
XOFF1 RD/WR
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
1 1 1
XOFF2 RD/WR
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
X X X
FSTAT
RD
RX-
RDYD#
RX-
RDYC#
RX-
RDYB#
RX-
RDYA#
TX-
RDYD#
TX-
RDYC#
TX-
RDYB#
TX-
RDYA#
FSRS# pin is
a logic 0. No
address lines
required.
TABLE 10: INTERNAL REGISTERS DESCRIPTION. SHADED BITS ARE ENABLED WHEN EFR BIT-4=1
ADDRESS
A2-A0
REG
NAME
READ/
WRITE
BIT-7
BIT-6
BIT-5
BIT-4
BIT-3
BIT-2
BIT-1
BIT-0
COMMENT
相關(guān)PDF資料
PDF描述
XR16V654IV-F IC UART FIFO 64B QUAD 64LQFP
ST16C654CQ64-F IC UART FIFO 64B QUAD 64LQFP
ST16C654DCQ64-F IC UART FIFO 64B QUAD 64LQFP
ST16C654IQ100-F IC UART FIFO 64B QUAD 100QFP
XR16V654IL-F IC UART FIFO 64B QUAD 48QFN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C654IQ64-F 制造商:Exar Corporation 功能描述:IC QUAD UART 1.5MBPS 5.5V 64-LQFP 制造商:Exar Corporation 功能描述:IC, QUAD UART, 1.5MBPS, 5.5V, 64-LQFP
ST16C654IQ64TR-F 制造商:Exar Corporation 功能描述:UART 4-CH 64Byte FIFO 3.3V/5V 64-Pin LQFP T/R 制造商:Exar Corporation 功能描述:ST16C654IQ64TR-F
ST16CF54 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Smartcard MCU With 4 KBytes EEPROM 512 Bits Modular Arithmetic Processor
ST16CQ32245TBR 功能描述:開關(guān) IC - 各種 Advanced Logic Signal Switch RoHS:否 制造商:Fairchild Semiconductor 開啟電阻（最大值）: 電源電壓-最大:4.4 V 電源電壓-最小:2.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WLCSP-9 封裝:Reel
ST16DD00 功能描述:撥動(dòng)開關(guān) TOGGLE RoHS:否 制造商:C&K Components 觸點(diǎn)形式:DPDT 開關(guān)功能:ON - ON - ON 電流額定值: 電壓額定值 AC:20 V 電壓額定值 DC:20 V 功率額定值:0.4 VA 端接類型:V-Bracket 安裝風(fēng)格: 端子密封:Epoxy 觸點(diǎn)電鍍:Gold 照明:Not Illuminated
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*