參數(shù)資料
型號(hào)： SC28L202A1
廠商： NXP Semiconductors N.V.
英文描述： Dual universal asynchronous receiver/transmitter DUART
中文描述： 雙路通用異步接收器/發(fā)送器杜阿爾特
文件頁(yè)數(shù)： 45/77頁(yè)
文件大?。?/td> 531K
代理商： SC28L202A1
Philips Semiconductors
Objective specification
SC28L202
Dual UART
2000 Feb 10
39
I/OPCR 0 – I/O Port Configuration Register
Bits 7:6
I/O3 A control
00 = GPI / TxC A
01 = OPR[3] A
10 = TxC A (16X) Output
11 = Reserved
Bits 5:4
I/O2 A control
00 = GPI / CT 0 Clock Input
01 = OPR[2] A / DTRN A
10 = TxC A (1X) Output
11 = Reserved
Bits 3:2
I/O1 A control
00 = GPI / CTSN B
01 = OPR[1] A
10 –
11 = Reserved
Bits 1:0
I/O0 A control
00 = GPI / CTSN A
01 = OPR[0] A
10 –
11 = Reserved
I/OPCR 1 – I/O Port Configuration Register
Bits 7:6
I/O7 A control
00 = GPI / CT 1 Clock Input
01 = OPR[7] A / DTRN B
10 = TxC B (1X) Output
11 = Reserved
Bits 5:4
I/O6 A control
00 = GPI / RxC B / PBRG 1 Clk Input
01 = OPR[6] A
10 = RxC B (16X) Output
11 = Reserved
Bits 3:2
I/O5 A control
00 = GPI / TxC B
01 = OPR[5] A
10 = TxC B (16X) Output
11 = Reserved
Bits 1:0
I/O4 A control
00 = GPI / RxC A / PBRG 0 Clk Input
01 = OPR[4] A
10 = RxC A (16X) Output
11 = Reserved
I/OPCR 2 – I/O Port Configuration Register
Bits 7:6
I/O3 B control
00 = GPI /DSRN B
01 = OPR[3] B
10 = RxC B (1X) Output
11 = C/T 0 Output (open
drain)
Bits 5:4
I/O2 B control
00 = GPI /DSRN A
01 = OPR[2] B
10 = RxC A (1X) Output
11 = C/T 1 Output (open drain)
Bits 3:2
I/O1 B control
00 = GPI
01 = OPR[1] B / RTSN B
10 = Reserved
11 = Reserved
Bits 1:0
I/O0 B control
00 = GPI
01 = OPR[0] B / RTSN B
10 = Reserved
11 = Reserved
I/OPCR 3 – I/O Port Configuration Register
Bits 7:6
I/O7 B control
00 = GPI /RIN B
01 = OPR[7] B
10 =TxINTN B (open drain)
11 =reserved
Bits 5:4
I/O6 B control
00 = GPI /RIN A
01 = OPR[6] B
10 =TxINTN A (open drain)
11 = reserved
Bits 3:2
I/O5 B control
00 = GPI /DCDN B
01 = OPR[5] B
10 = RxINTN B (open
drain)
11 = reserved
Bits 1:0
I/O4 B control
00 = GPI /DCDN A
01 = OPR[4] B
10 = RxINTN A (open drain)
11 = reversed
NOTE
: Both I/O Port A and B default to input upon a hardware reset to avoid hardware conflicts with I/O direction
The four registers above contain 4, 2 bit fields that set the direction and source for each of the I/O pins associated with the channel. The I/O0 B
or I/O1 B output may be RTSN if MR1[7] is set. It may also signal ”end of transmission” if MR2[5] is set. (Please see the descriptions of these
functions under the MR1 and MR2 register descriptions).
The binary settings of the binary 00 combination always configures the I/O pins as “inputs”. However the input circuit of the I/O pins are
ALWAYS active. In actuality the binary 00 condition only disable the output driver of the pin. Since the input circuit and the associated change of
state detector is always active the output signal may generate interrupts or drive counters.
This register resets to 0x00 on reset, effectively configuring all I/O pins as inputs. 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.
SOPR A and SOPR B – Set the Output Port Bits (OPR A and OPR B)
SOPR [7:0] – Ones in the byte written to this register will cause the corresponding bit positions in the OPR to set to 1. Zeros have no effect. This
allows software to set individual bits with our keeping a copy of the OPR bit configuration. One register for each channel.
Bit 7
BIT 6
BIT 5
BIT 4
Set OPR Bits
OPR 7
OPR 6
OPR 5
OPR 4
1=set bit
0=no
change
change
change
BIT 3
OPR 3
1=set bit
0=no change
BIT 2
OPR 2
1=set bit
0=no change
BIT 1
OPR 1
1=set bit
0=no change
BIT 0
OPR 0
1=set bit
0=no
change
1=set bit
0=no
1=set bit
0=no
1=set bit
0=no change
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC28L202A1B 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual universal asynchronous receiver/transmitter DUART
SC28L202A1D 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual universal asynchronous receiver/transmitter DUART
SC28L202A1DGG 功能描述:UART 接口集成電路 3-5V 2CH UART 3MBPS 256B 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
SC28L202A1DGG,112 功能描述:UART 接口集成電路 3-5V 2CH UART 3MBPS 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
SC28L202A1DGG,118 功能描述:UART 接口集成電路 3-5V 2CH UART 3MBPS 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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