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參數(shù)資料
| 型號： | ST16C450 |
| 廠商： | Exar Corporation |
| 英文描述： | UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART) |
| 中文描述： | 通用異步接收/發(fā)送器（UART） |
| 文件頁數(shù)： | 8/28頁 |
| 文件大?。?/td> | 182K |
| 代理商： | ST16C450 |
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ST16C450
8
Rev. 4.20
FUNCTIONAL DESCRIPTIONS
Internal Registers
The ST16C450 provides 11 internal registers for
monitoring and control. These registers are shown in
Table 2 below. These registers function as data holding
registers (THR/RHR), interrupt status and control
registers (IER/ISR), line status and control registers,
(LCR/LSR), modem status and control registers (MCR/
MSR), programmable data rate (clock) control registers
(DLL/DLM), and a user assessable scratchpad register
(SPR).
Table 2, INTERNAL REGISTER DECODE
A2
A1
A0
READ MODE
WRITE MODE
General Register Set (THR/RHR, IER/ISR, MCR/MSR, LCR/LSR, SPR):
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Receive Holding Register
Transmit Holding Register
Interrupt Enable Register
Interrupt Status Register
Line Control Register
Modem Control Register
Line Status Register
Modem Status Register
Scratchpad Register
Scratchpad Register
Baud Rate Register Set (DLL/DLM): Note *3
0
0
0
0
0
1
LSB of Divisor Latch
MSB of Divisor Latch
LSB of Divisor Latch
MSB of Divisor Latch
Note *3: These registers are accessible only when LCR bit-7 is set to a logic 1.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST16C450CJ | 制造商:Exar Corporation 功能描述: |
| ST16C450CJ44 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| ST16C450CJ44-F | 功能描述:UART 接口集成電路 SINGLE 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 |
| ST16C450CJ44TR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| ST16C450CJ44TRF | 制造商:EXAR 功能描述:NEW |
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