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參數(shù)資料
| 型號： | SC28L194 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Quad UART for 3.3V and 5V supply voltage(在3.3V和5V電源電壓中應(yīng)用的四 UART) |
| 中文描述： | 四UART的3.3V和5V電源電壓（在3.3和5V的電源電壓中應(yīng)用的四UART）的 |
| 文件頁數(shù)： | 28/52頁 |
| 文件大?。?/td> | 294K |
| 代理商： | SC28L194 |
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Philips Semiconductors
Preliminary specification
SC28L194
Quad UART for 3.3V and 5V supply voltage
1998 Sep 21
28
Table 34.
GRxFIFO - Global RxFIFO Register
Bits 7:0
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The RxFIFO of the channel indicated in the CIR channel field.
Undefined when the CIR interrupt context is not a receiver interrupt.
Global TxFIFO Register
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Table 35.
GTxFIFO - Global TxFIFO Register
Bits 7:0
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The TxFIFO of the channel indicated in the CIR channel field.
Undefined when the CIR interrupt context is not a transmitter
interrupt. Writing to the GTxFIFO when the current interrupt is not a
transmitter event may result in the characters being transmitted on a
different channel than intended.
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Table 36.
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This register may be read to determine the current level of the I/O pins and examine the output of the change detectors assigned to each pin. If
the change detection is not enabled or if the pin is configured as an output, the associated change field will read b’0.
change
change
change
change
state
state
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Table 37.
Bit 6
Bit 5
1 - enable
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Bit 7
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
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1 - enable
1 - enable
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I/OPIOR[3:0] bits hold the datum which is the inverse of the datum driven to its associated I/O pin when the I/OPCR control bits for that pin are
programmed to b’01.
Table 38.
I/OPCR - I/O Port Configuration Register
I/O2 control
00 - GPI/TxC input
10 - TxC16x output
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* If I/OPCR(5:4) is programmed as ’01’ then the RTSN functionality is assigned to I/O2, otherwise, this function can be implemented on I/O1.
(This allows for a lower pin count package option.)
I/O3 control
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10 - RxC1x output
I/O1 control
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10 - Reserved
I/O0 control
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00 - GPI/RxC input
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00 - GPI input
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00 - GPI/CTSN input
This register contains 4, 2 bit fields that set the direction and source for each of the I/O pins associated with the channel. The I/O2 output may
be RTSN if MR1[7] is set, or may signal “end of transmission” if MR2[5] is set.(Please see the descriptions of these functions under the MR1
and MR2 register descriptions) If this control bit is cleared, the pin will use the OPR[2] as a source if I/OPCR[5:4] is b’01. The b’00 combinations
are always inputs. This register resets to x’0, effectively configuring all I/O pins as inputs on power up or reset. Inputs may be used as RxC, TxC
inputs or CTSN and General Purpose Inputs simultaneously. All I/O ports are equipped with change detectors that may be used to generate
interrupts or can be polled, as required.
NOTE: To ensure that CTSN, RTSN and an external RxC are always available, if I/O2 is not selected as the RTSN output, the RTSN function is
automatically provided on I/O1.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC28L194A1A | 功能描述:UART 接口集成電路 3V-5V 4CH UART INTEL/MOT INTRF 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 |
| SC28L194A1A,512 | 功能描述:UART 接口集成電路 3V-5V 4CH 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 |
| SC28L194A1A,518 | 功能描述:UART 接口集成電路 3V-5V 4CH 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 |
| SC28L194A1A,529 | 功能描述:UART 接口集成電路 3V-5V 4CH 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 |
| SC28L194A1A-S | 功能描述:UART 接口集成電路 3V-5V 4CH UART INTEL/MOT INTRF 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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