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| 型號： | SC28L92A1B-S |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 2 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQFP44 |
| 封裝： | 10 X 10 MM, 1.75 MM HEIGHT, PLASTIC, SOT-307-2, QFP-44 |
| 文件頁數(shù)： | 16/73頁 |
| 文件大?。?/td> | 336K |
| 代理商： | SC28L92A1B-S |
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SC28L92_7
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 07 — 19 December 2007
23 of 73
NXP Semiconductors
SC28L92
3.3 V/5.0 V Dual Universal Asynchronous Receiver/Transmitter
For example, changing the number of bits per character while the transmitter is active may
cause the transmission of an incorrect character. In general, the contents of the MR, the
CSR, and the OPCR should only be changed while the receiver(s) and transmitter(s) are
not enabled, and certain changes to the ACR should only be made while the C/T is
stopped.
Each channel has three mode registers (MR0, MR1 and MR2) which control the basic
conguration of the channel. Access to these registers is controlled by independent MR
address pointers. These pointers are set to 0x0 or 0x1 by MR control commands in the
command register Miscellaneous Commands. Each time the MR registers are accessed
the MR pointer increments, stopping at MR2. It remains pointing to MR2 until set to 0x0 or
0x1 via the miscellaneous commands of the command register. The pointer is set to 0x1
on reset for compatibility with previous Philips Semiconductors UART software.
Mode, command, clock select, and status registers are duplicated for each channel to
provide total independent operation and control. Refer to Section 7.2 for register bit
overview. The reserved registers at addresses 0x2 and 0xA should never be read during
normal operation since they are reserved for internal diagnostics.
[1]
The three MR registers are accessed via the MR Pointer and Commands 0x1n and 0xBn (where n = represents receiver and transmitter
enable bits).
Table 4.
SC28L92 register addressing READ (RDN = 0), WRITE (WRN = 0)[1]
Binary address
Read operation (RDN = 0 and CEN = 0)
Write operation (WRN = 0 and CEN = 0)
0000
Mode Register A (MR0A, MR1A, MR2A)
0001
Status Register A (SRA)
Clock Select Register A (CSRA)
0010
reserved
Command Register A (CRA)
0011Rx Holding Register A (RxFIFOA)
Tx Holding Register A (TxFIFOA)
0100
Input Port Change Register (IPCR)
Auxiliary Control Register (ACR)
0101
Interrupt Status Register (ISR)
Interrupt Mask Register (IMR)
0110
Counter/Timer Upper (CTU)
C/T Upper Preset Register (CTPU)
0111
Counter/Timer Lower (CTL)
C/T Lower Preset Register (CTPL)
1000
Mode Register B (MR0B, MR1B, MR2B)
1001
Status Register B (SRB)
Clock Select Register B (CSRB)
1010
reserved
Command Register B (CRB)
1011Rx Holding Register B (RxFIFOB)
Tx Holding Register B (TxFIFOB)
1100
Interrupt vector (68xxx mode)
1100
Miscellaneous register (Intel mode), IVR
Motorola mode
Miscellaneous register (Intel mode), IVR
Motorola mode
1101
Input Port Register (IPR)
Output Port Conguration Register (OPCR)
1110
start counter command
Set Output Port Bits Command (SOPR)
1111
stop counter command
Reset output Port Bits Command (ROPR)
Table 5.
Registers for channels A and B
Register name
Channel A register
Channel B register
Access
Mode Register
MRnA
MRnB
R/W
Status Register
SRA
SRB
R only
Clock Select
CSRA
CSRB
W only
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相關(guān)代理商/技術(shù)參數(shù) |
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| SC28L92A1BS,528 | 功能描述:UART 接口集成電路 3V-5V 1CH 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 |
| SC28L92A1BS,551 | 功能描述:UART 接口集成電路 3V-5V 1CH 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 |
| SC28L92A1BS,557 | 功能描述:UART 接口集成電路 3V-5V 1CH 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 |
| SC28L92A1BS-F | 功能描述:UART 接口集成電路 3V-5V 1CH 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 |
| SC28L92A1BS-S | 功能描述:UART 接口集成電路 3V-5V 1CH 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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