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參數(shù)資料
| 型號(hào)： | SC28L198 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Octal UART for 3.3V and 5V supply voltage |
| 中文描述： | 八路的UART電源電壓為3.3V和5V |
| 文件頁數(shù)： | 30/56頁 |
| 文件大?。?/td> | 345K |
| 代理商： | SC28L198 |
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Philips Semiconductors
Product specification
SC28L198
Octal UART for 3.3V and 5V supply voltage
1999 Jan 14
30
Bits 7:6
01 – I/OPIOR[3] output
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)
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Bits 5:4
01 – I/OPIOR[2]/RTSN *
10 – RxC1x output
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Table 40. GPOR – General Purpose Output
Register
This register is a read/write register. Its contents may be altered by
a GPOR Write or by the GPOC and GPOD registers shown below.
The GPOD and GPOC may be programmed to cause the individual
bits of the GPOR to change synchronously with internal or external
events. The cells of this register may be thought of as a “Two Port
flip-flop”; one port is controlled by a D input and clock, the other by a
data load strobe. A read of the GPOR always returns its current
Bits 7:4
Bit 3
Bit 2
Bits 3:2
01 – I/OPIOR[1]/RTSN *
10 – Reserved
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Bits 1:0
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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 inputs 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.
GENERAL PURPOSE OUTPUT PIN CONTROL
The following four registers control the function of the G
OUT
0 pin.
These output pins have a unique control matrix which includes a
clocking mechanism that will allow the pin to change synchronously
with an internal or external stimulus. See diagram below.
Table 39. GPOSR – General Purpose Output
Select Register
GPOSR selects the signal or data source for the G
OUT
0 pin. The Tx
and Rx clock selection is straight forward. The selection of the
GPOR allows a more flexible timing control of when the G
OUT
0 pin
changes.
Bits 7:4
Reserved
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Bit 1
Bit 0
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Table 41. GPOC – General Purpose Output Clk
Register
This controls the clock source for GPOR that will clock and/or toggle
the data from the selected GPOD source. When code b’00 is
selected, no clock will be provided, thereby preventing any change
through the D port.
GPOR(3)
GPOR(2)
00 = none
01 = G
IN
0
10 = G
IN
1
11 = reserved
11 = reserved
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Table 42. GPOD – General Purpose Output Data
Register
This register selects the data that will be presented to the GPOR “D”
input. Note that selection b’10 selects the inverted GPOR data as
the input. In this case, the GPOR output will toggle synchronously
with the clock selected in the GPOC.
Bits 7:6
Bits 5:4
Data Sel
01 = ’0’
10 = GPOR3N
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GPOR(1)
00 = none
01 = G
IN
0
10 = G
IN
1
11 = I/O3c
GPOR(0)
00 = none
01 = G
IN
0
10 = G
IN
1
11 = I/O3a
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00 = none
01 = G
IN
0
10 = G
IN
1
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Clk Sel
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Bits 3:2
01 = ’0’
10 = GPOR1N
Bits 1:0
01 = ’0’
10 = GPOR0N
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Data Sel
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01 = ’0’
10 = GPOR2N
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC28L198A1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal UART for 3.3V and 5V supply voltage |
| SC28L198A1A | 功能描述:UART 接口集成電路 UART OCTAL W/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 |
| SC28L198A1A,512 | 功能描述:UART 接口集成電路 UART OCTAL W/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 |
| SC28L198A1A,518 | 功能描述:UART 接口集成電路 3V-5V 8CH 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 |
| SC28L198A1A,529 | 功能描述:UART 接口集成電路 3V-5V 8CH 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 |
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