參數(shù)資料
型號： SC28L202A1B
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： Dual universal asynchronous receiver/transmitter DUART
中文描述： 2 CHANNEL(S), 3M bps, SERIAL COMM CONTROLLER, PQFP52
封裝： 10 X 10 MM, 2 MM HEIGHT, PLASTIC, MO-108, SOT-379-1, QFP-52
文件頁數(shù)： 46/77頁
文件大?。?/td> 531K
代理商： SC28L202A1B
Philips Semiconductors
Objective specification
SC28L202
Dual UART
2000 Feb 10
40
ROPR A and ROPR B – Reset ROPR Output Port Bits (OPR A and OPR B)
ROPR [7:0] – Ones in the byte written to the ROPR will cause the
corresponding bit positions in the OPR to set to 0. Zeros have no
Bit 7
BIT 6
Reset OPR
Bits
1=reset bit
0=no change
0=no
change
effect. This allows software to reset individual bits with our keeping a
copy of the OPR bit configuration. One register for each channel
BIT 3
BIT 2
OPR 3
OPR 2
BIT 5
OPR 5
BIT 4
OPR 4
BIT 1
OPR 1
BIT 0
OPR 0
OPR 7
OPR 6
1=reset bit
1=reset bit
0=no
change
1=reset bit
0=no
change
1=reset bit
0=no
change
1=reset bit
0=no
change
1=reset bit
0=no
change
1=reset bit
0=no change
OPR – Output Port Register, A and B (n = A for A, n = B for B)
The output pins (I/O pins) drive the data written to this register.
Bit 7
BIT 6
OPR
I/O7 n
I/O6 n
0=Pin High
1=Pin Low
1=Pin Low
This register is set by the SOPR and ROPR above.
BIT 5
I/O5 n
0=Pin High
1=Pin Low
BIT 4
I/O4 n
0=Pin High
1=Pin Low
BIT 3
I/O3 n
0=Pin High
1=Pin Low
BIT 2
I/O2 n
0=Pin High
1=Pin Low
BIT 1
I/O1 n
0=Pin High
1=Pin Low
BIT 0
I/O0 n
0=Pin High
1=Pin Low
0=Pin High
THE REGISTERS FOR COMPATIBILITY WITH PREVIOUS DUARTS
The purpose of including previous functionality is to allow users to
call communications code that may be used in former systems.
When the registers in this lower 16–position address space is used
it will revoke programming done in the upper address space where
the addresses are duplicated. If functions have been called from
upper address space that DO NOT exist in the lower address space
they will remain active. It is therefore recommended that the “Reset
to C92 “ command be issued before calling code written for older
devices. This is just recommended. If one wishes to enhance
previous code by using Xon/Xoff, for example, there is no restriction
against it. These registers provide the original functionality of
previous Philips DUARTs: SCN2681, SCN68681, SCC2691,
SCC68692, SC26C92 and SC28L92.
Table 7. SC28L92 Register Addressing
READ (RDN = 0) WRITE (WRN = 0)
Address
READ (RDN = 0)
0
0
0
0
Mode Register A (MR0 A, MR1 A, MR2 A)
0
0
0
1
Status Register A (SR A)
0
0
1
0
Reserved
0
0
1
1
Rx Holding Register A (RxFIFO A)
0
1
0
0
Input Port Change Register (IPCR)
0
1
0
1
Interrupt Status Register (ISR)
0
1
1
0
Counter/Timer Upper (CTPU)
0
1
1
1
Counter/Timer Lower (CTPL)
1
0
0
0
Mode Register B (MR0 B, MR1 B, MR2 B)
1
0
0
1
Status Register B (SR B)
1
0
1
0
Reserved
1
0
1
1
Rx Holding Register B (RxFIFO B)
1
1
0
0
IVR or general purpose register
1
1
0
1
Input Port (IPR)
I/O(6:0) A
1
1
1
0
Start Counter Command (C/T 0)
1
1
1
1
Stop Counter Command (C/T 0)
NOTE:
The three MR Registers are accessed via the MR Pointer and Commands 0x1n and 0xBn (where n = represents receiver and
transmitter enable bits)
WRITE (WRN = 0)
Mode Register A (MR0 A, MR1 A, MR2 A)
Clock Select Register A (CSR A )
Command Register A (CR A)
Tx Holding Register A (TxFIFO A)
Aux. Control Register (ACR)
Interrupt Mask Register (IMR)
C/T Upper Preset Register (CTPU)
C/T Lower Preset Register (CTPL)
Mode Register B (MR0 B, MR1 B, MR2 B)
Clock Select Register B (CSR B )
Command Register B (CR B)
Tx Holding Register B (TxFIFO B)
IVR or general purpose register
Output Port Confide. Register (OPCR)
I/O(7:2) B
Set Output Port Bits Command (SOPR) I
/O(7:0) B
Reset output Port Bits Command (ROPR)
I/O(7:0) B
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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
SC28L202A1DGG,129 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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