參數(shù)資料
型號： SC68C94C1A
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： nullQuad universal asynchronous receiver/transmitter QUART
中文描述： 4 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQCC52
封裝： PLASTIC, SOT-238-3, LCC-52
文件頁數(shù)： 20/33頁
文件大?。?/td> 215K
代理商： SC68C94C1A
Philips Semiconductors
Product specification
SC68C94
Quad universal asynchronous receiver/transmitter (QUART)
1995 May 1
20
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 B (IOPCRB)
Pin Control Bits
IOPCRb[7:6]
IOPCRb[5:4]
IOPCRb[3:2]
IOPCRb[1:0]
IOPCR[xx]
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)
RTSN
NO TAG
if IOPCR[5:4] =
01
OPRab(3)
RTSN
NO TAG
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)
Pin Control Bits
IOPCRc[7:6]
IOPCRc[5:4]
IOPCRc[3:2]
IOPCRc[1:0]
IOPCR[xx]
I/O3C
I/O2C
I/O1C
I/O0C
00 = input
IPR(5), TxC in
IPR(4), RxC in
IPR(1), C/Tcd Clk in
NO TAG
TxC in
IPR(0), CTSN
01 = output
OPRcd(5)
OPRcd(4)
RTSN
NO TAG
if IOPCR[5:4] =
01
OPRab(1)
RTSN
NO TAG
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)
Pin Control Bits
IOPCRd[7:6]
IOPCRd[5:4]
IOPCRd[3:2]
IOPCRd[1:0]
IOPCR[xx]
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)
RTSN
NO TAG
if IOPCR[5:4] =
01
OPRcd(3)
RTSN
NO TAG
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)
Registers of the Interrupt System
The CIR, and “Global” registers are updated with the IACKN signal
or from the “Update CIR” command at hex address 2A. These
registers are not updated when IRQN is asserted since there could
be a long time between the assertion of IRQN and the start of the
interrupt service routine. (See notes following this section).
Current Interrupt Register (CIR)
# Bytes
Type
Chan #
3
3
2
相關(guān)PDF資料
PDF描述
SC68C94C1N Pressure Transducer, Series 19 mm, Compensated, Pressure Range: 0 psi to 50 psi, Gage, flush mount, 10 Vdc excitation
SC701 SILICON GATE ENHANCEMENT MODE RF POWER VDMOS TRANSISTOR
SC721 SILICON GATE ENHANCEMENT MODE RF POWER VDMOS TRANSISTOR
SCD5580 Serial Input Dot Addressable Intelligent Display
SCD5581 Serial Input Dot Addressable Intelligent Display
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC68C94C1N 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:nullQuad universal asynchronous receiver/transmitter QUART
SC68L198 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal UART with TTL compatibility at 3.3V and 5V supply voltages
SC68L198A1A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal UART with TTL compatibility at 3.3V and 5V supply voltages
SC68L198C1A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal UART with TTL compatibility at 3.3V and 5V supply voltages
SC68PM302PV25B 制造商:Freescale Semiconductor 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*