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)： 29/52頁
文件大?。?/td> 294K
代理商： SC28L194
Philips Semiconductors
Preliminary specification
SC28L194
Quad UART for 3.3V and 5V supply voltage
1998 Sep 21
29
GENERAL PURPOSE OUTPUT PIN CONTROL
The following four registers control the function of the Gout0 and
Gout1 pins. 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 Gout pins. The Tx
and Rx clock selection is straight forward. The selection of the
GPOR allows a more flexible timing control of when the Gout pins
change.
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Selection
0000 - 0111 reserved
1000 = TxC1x a
1001 = TxC16x a
1010 = RxC16x a
1011 = TxC16x b
1100 = GGPOR(3)
1101 = GGPOR(2)
1110 = GGPOR(1)
1111 = GGPOR(0)
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0000 - 0111 reserved
1111 = GGPOR(0)
Global General Purpose Output
1
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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
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Bits 7:4
Bit 3
Bit 2
Bit 1
GPOR(0)
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.
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Table 42.
GPOR(3)
00 = none
01 = GIN0
10 = GIN1
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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
GPOR(2)
00 = none
01 = GIN0
10 = GIN1
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GPOR(1)
00 = none
01 = GIN0
10 = GIN1
GPOR(0)
00 = none
01 = GIN0
10 = GIN1
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Bits 7:6
Data Sel
GPOR(3)
00 = ’1’
01 = ’0’
10 = GPOR3N
11 = reserved
Bits 5:4
Data Sel
GPOR(2)
01 = ’0’
10 = GPOR2N
11 = reserved
Bits 3:2
Data Sel
GPOR(1)
01 = ’0’
10 = GPOR1N
11 = I/O3d
Bits 1:0
Data Sel
GPOR(0)
01 = ’0’
10 = GPOR0N
11 = I/O3b
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4:1 MULTIPLEX
“1”
“0”
NONE
1/O3a
D CLOCK
QN
D INPUT
DATA READ/WRITE
DATA IN/OUT
GPORQN
DATA BUS 3:0
GPOR R/W
GPOR
GPOD
GPOSR
1/O3b
G
IN
0
G
IN
1
4:1 MULTIPLEX
GPO PIN
8:1 MULTIPLEX
TxC1Xa
TxC16Xa
RxC16Xa
TxC16Xb
GPOR(0)
GPOR(1)
GPOR(2)
GPOR(3)
SD00526
GPOC
4
4
4
Figure 3.
General Purpose Pin Control Logic
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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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