- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄379352 > SC16C852LIB (NXP Semiconductors N.V.) 1.8 V dual UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode bus interface PDF資料下載
參數(shù)資料
| 型號： | SC16C852LIB |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 收發(fā)器 |
| 英文描述： | 1.8 V dual UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode bus interface |
| 封裝： | SC16C852LIB<SOT313-2 (LQFP48)|<<http://www.nxp.com/packages/SOT313-2.html<1<Always Pb-free,;SC16C852LIB<SOT313-2 (LQFP48)|<<http://www.nxp.com/packages/SOT313-2.html<1 |
| 文件頁數(shù)： | 19/64頁 |
| 文件大小： | 1160K |
| 代理商： | SC16C852LIB |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁
SC16C852L
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 4 — 1 February 2011
19 of 64
NXP Semiconductors
SC16C852L
1.8 V dual UART with 128-byte FIFOs and IrDA encoder/decoder
6.10 DMA operation
The SC16C852L FIFO trigger level provides additional flexibility to the user for block
mode operation. The user can optionally operate the transmit and receive FIFOs in the
DMA mode (FCR[3]). The DMA mode affects the state of the RXRDYA/RXRDYB and
TXRDYA/TXRDYB output pins.
Table 8
and
Table 9
show this.
Table 8.
Non-DMA mode
1 = FIFO empty
0 = at least 1 byte in FIFO
[1]
Receive FIFO becomes full at 32 bytes when in normal mode. When TXINTLVL or RXINTLVL or FLWCNTH
or FLWCNTL contains any value other than 0x00 (extended mode), then the receive FIFO becomes full at
128 bytes.
Table 9.
Non-DMA mode
1 = at least 1 byte in FIFO
0 = FIFO empty
[1]
Transmit FIFO becomes full at 32 bytes when in normal mode. When TXINTLVL or RXINTLVL or
FLWCNTH or FLWCNTL contains any value other than 0x00 (extended mode), then the transmit FIFO
becomes full at 128 bytes.
6.11 Loopback mode
The internal loopback capability allows on-board diagnostics. In the Loopback mode, the
normal modem interface pins are disconnected and reconfigured for loopback internally
(see
Figure 10
). MCR[3:0] register bits are used for controlling loopback diagnostic
testing. In the Loopback mode, the transmitter output (TX) and the receiver input (RX) are
disconnected from their associated interface pins, and instead are connected together
internally. The CTS, DSR, CD, and RI are disconnected from their normal modem control
input pins, and instead are connected internally to RTS, DTR, MCR[3] (OP2A/OP2B) and
MCR[2] (OP1A/OP1B). Loopback test data is entered into the transmit holding register via
the user data bus interface, D[7:0]. The transmit UART serializes the data and passes the
serial data to the receive UART via the internal loopback connection. The receive UART
converts the serial data back into parallel data that is then made available at the user data
interface D[7:0]. The user optionally compares the received data to the initial transmitted
data for verifying error-free operation of the UART TX/RX circuits.
In this mode, the interrupt pin is 3-stated, therefore, the software must use the polling
method (see
Section 7.2.2
) to send and receive data.
Effect of DMA mode on state of RXRDYA/RXRDYB pin
DMA mode
0-to-1 transition when FIFO empties
1-to-0 transition when FIFO reaches trigger level, or time-out
occurs
[1]
Effect of DMA mode on state of TXRDYA/TXRDYB pin
DMA mode
0-to-1 transition when FIFO becomes full
[1]
1-to-0 transition when FIFO has at least one empty location
相關PDF資料 |
PDF描述 |
|---|---|
| SC16C852LIBS | 1.8 V dual UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode bus interface |
| SC16C852LIET | 1.8 V dual UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode bus interface |
| SC16C852SVIET | 1.8 V dual UART, 20 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA), and XScale VLIO bus interface |
| SC16C852VIET | 1.8 V dual UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and XScale VLIO bus interface |
| SC16IS740IPW | Single UART with I2C-bus-SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SC16C852LIB,128 | 功能描述:UART 接口集成電路 1.8V 2 CH UART 128B 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 |
| SC16C852LIB,151 | 功能描述:UART 接口集成電路 UART 2-CH 128Byte FIFO 1.8V 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 |
| SC16C852LIB,157 | 功能描述:UART 接口集成電路 1.8V 2 CH UART 128B 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 |
| SC16C852LIB-F | 功能描述:UART 接口集成電路 1.8V 2 CH UART 128B FIFO 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 |
| SC16C852LIBS | 功能描述:UART 接口集成電路 1.8V 2 CH UART 128B FIFO 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。