参数资料
| 型号： | SC28C94A1A,512 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 15/39页 |
| 文件大小： | 0K |
| 描述： | IC UART QUAD W/FIFO 52-PLCC |
| 产品培训模块： | Stand-Alone UARTs |
| 标准包装： | 23 |
| 特点： | 故障启动位检测 |
| 通道数： | 4，QUART |
| FIFO's： | 8 字节 |
| 电源电压： | 5V |
| 带自动流量控制功能： | 是 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 带CMOS： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 52-LCC（J 形引线） |
| 供应商设备封装： | 52-PLCC（19.2x19.2） |
| 包装： | 管件 |
| 产品目录页面： | 828 (CN2011-ZH PDF) |
| 其它名称： | 568-3993-5 935262534512 SC28C94A1A SC28C94A1A-ND |
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Philips Semiconductors
Product data sheet
SC28C94
Quad universal asynchronous receiver/transmitter (QUART)
2006 Aug 09
22
I/O Port Control Channel B (IOPCRB)
IOPCR[xx]
IOPCRb[7:6]
IOPCRb[5:4]
IOPCRb[3:2]
IOPCRb[1:0]
Pin Control Bits
I/O3B
I/O2B
I/O1B
I/O0B
00 = input
IPR(7), TxC in
IPR(6), RxC in
IPR(3), TxC in
IPR(2), CTSN
01 = output
OPRab(7)
OPRab(6)
RTSN1 if IOPCR[5:4] = 01
OPRab(3)
RTSN2 if IOPCR[5:4]
≠ 01
OPRab(2)
10 = output
TxC 16x
RxC 1x
C/T ab out
TxC 1x
11 = output
TxC 1x
RxC 16x
RxC 1x
TxC 16x
I/O Port Control Channel C (IOPCRC)
IOPCR[xx]
IOPCRc[7:6]
IOPCRc[5:4]
IOPCRc[3:2]
IOPCRc[1:0]
Pin Control Bits
I/O3C
I/O2C
I/O1C
I/O0C
00 = input
IPR(5), TxC in
IPR(4), RxC in
IPR(1), C/Tcd Clk in1 TxC in
IPR(0), CTSN
01 = output
OPRcd(5)
OPRcd(4)
RTSN1 if IOPCR[5:4] = 01
OPRab(1)
RTSN2 if IOPCR[5:4]
≠ 01
OPRcd(0)
10 = output
TxC 16x
RxC 1x
RxC 16x
TxC 1x
11 = output
TxC 1x
RxC 16x
RxC 1x
TxC 16x
I/O Port Control Channel D (IOPCRD)
IOPCR[xx]
IOPCRd[7:6]
IOPCRd[5:4]
IOPCRd[3:2]
IOPCRd[1:0]
Pin Control Bits
I/O3D
I/O2D
I/O1D
I/O0D
00 = input
IPR(7), TxC in
IPR(6), RxC in
IPR(3), TxC in
IPR(2), CTSN
01 = output
OPRcd(7)
OPRcd(6)
RTSN1 if IOPCR[5:4] = 01
OPRcd(3)
RTSN2 if IOPCR[5:4]
≠ 01
OPRcd(2)
10 = output
TxC 16x
RxC 1x
C/T cd out
TxC 1x
11 = output
TxC 1x
RxC 16x
RxC 1x
TxC 16x
The input part of the I/O pins is always active. The programming of the IOPCR bits to 00 merely turns off the out drivers and places
the pin at high impedance.
A read of the IPR register returns the value of the IPR bits as shown above. IPR(5) is at bit position 5 of the data bus. Note that the IPR bit
positions do not follow the 0, 1, 2, 3 order of the I/O ports. During a read of the IPR the I/O ports are not latched. Therefore, it is possible to see
changing data during the read. Port pins that have clocks on them may not yield valid data during the read.
Since the input circuits of the I/O ports are always active it is possible to direct the port signal back into the port. For example: I/O1 will output
the RTS signal. Setting the Counter/Timer (C/T) to be clocked by the I/O1 port will result in the counter counting the number of times RTS goes
active. The change of state detectors on I/O0 and I/O1 will, when programmed, always be sensitive to the signal on the port regardless of the
source of that port’s signal.
NOTES:
1. Normal configurations place RTSN output on I/O1 and place Tx external clock input on I/O3. For the 48 pin Dual In-Line package, I/O3 is
not available. The following options allow flexible I/O programming with the 48 pin package:
When IOPCR(7:6), the I/O3 control,
≠ 00, then I/O1 becomes available to the transmitter as an external clock.
When IOPCR(5:4), the I/O2 control, = 01, then I/O2 may be the RTSN signal if MR1(7) = 1 and OPR(4) = 1.
2. I/O1 becomes RTSN when IOPCR(3:2) = 01 and MR1(7) = 1 and OPR(1) = 1. (OPR(3) for channel B)
3. Recommended method for setting RTS/CTS flow control is to set IPCR [5:4] to 01 and to set I/OPCR[1:0] to 00. This makes I/O[2} RTSN
and I/O[1] CTSN. Caution: When RTS/CTS is active writing to the OPR register could conflict with the receiver control of OPR [6] and
OPR [4].
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC28C94A1A512 | 制造商:NXP Semiconductors 功能描述:IC QUAD UART FIFO 230.4KBAUD 5.5V LCC-52 |
| SC28C94A1AB | 制造商:PHILIPS-SEMI 功能描述: |
| SC28C94A1N | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Quad universal asynchronous receiver/transmitter QUART |
| SC28C94A1N,112 | 功能描述:IC UART QUAD W/FIFO 48-DIP RoHS:是 类别:集成电路 (IC) >> 接口 - UART（通用异步接收器/发送器） 系列:- 标准包装:250 系列:- 特点:* 通道数:2，DUART FIFO's:16 字节 规程:RS232，RS485 电源电压:2.25 V ~ 5.5 V 带并行端口:- 带自动流量控制功能:是 带IrDA 编码器/解码器:是 带故障启动位检测功能:是 带调制解调器控制功能:是 带CMOS:是 安装类型:表面贴装 封装/外壳:48-TQFP 供应商设备封装:48-TQFP（7x7） 包装:托盘 其它名称:XR16L2551IM-F-ND |
| SC28L194 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Quad UART for 3.3V and 5V supply voltage |
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