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| 型號(hào)： | ST16C2550CQ48 |
| 廠商： | EXAR CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S |
| 中文描述： | 2 CHANNEL(S), 4M bps, SERIAL COMM CONTROLLER, PQFP48 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, TQFP-48 |
| 文件頁(yè)數(shù)： | 14/34頁(yè) |
| 文件大?。?/td> | 443K |
| 代理商： | ST16C2550CQ48 |
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ST16C2550
14
Rev. 3.20
REGISTER FUNCTIONAL DESCRIPTIONS
The following table delineates the assigned bit functions for the twelve 2550 internal registers. The assigned
bit functions are more fully defined in the following paragraphs.
Table 5, ST16C2550 INTERNAL REGISTERS
A2 A1 A0
Register
[Default]
Note 3*
BIT-7
BIT-6
BIT-5
BIT-4
BIT-3
BIT-2
BIT-1
BIT-0
General Register Set: Note 1*
0
0
0
RHR [XX]
bit-7
bit-6
bit-5
bit-4
bit-3
bit-2
bit-1
bit-0
0
0
0
THR [XX]
bit-7
bit-6
bit-5
bit-4
bit-3
bit-1
bit-0
0
0
1
IER [00]
0
0
0
0
Modem
Status
Interrupt
Receive
Line
Status
interrupt
Transmit
Holding
Register
interrupt
Receive
Holding
Register
0
1
0
FCR [00]
RCVR
trigger
(MSB)
RCVR
trigger
(LSB)
0
0
DMA
mode
select
XMIT
FIFO
reset
RCVR
FIFO
reset
FIFO
enable
0
1
0
ISR [01]
FIFOs
enabled
FIFOs
enabled
0
0
INT
priority
bit-2
INT
priority
bit-1
INT
priority
bit-0
INT
status
0
1
1
LCR [00]
divisor
latch
enable
set
break
set
parity
even
parity
parity
enable
stop
bits
word
length
bit-1
word
length
bit-0
1
0
0
MCR [00]
0
0
0
loop
back
-OP2/
INT
enable
-OP1
-RTS
-DTR
1
0
1
LSR [60]
FIFO
data
error
THR &
TSR
empty
THR.
empty
break
interrupt
framing
error
parity
error
overrun
error
receive
data
ready
1
1
0
MSR [X0]
CD
RI
DSR
CTS
delta
-CD
delta
-RI
delta
-DSR
delta
-CTS
1
1
1
SPR [FF]
bit-7
bit-6
bit-5
bit-4
bit-3
bit-2
bit-1
bit-0
Special Register Set: Note *2
0
0
0
DLL [XX]
bit-7
bit-6
bit-5
bit-4
bit-3
bit-2
bit-1
bit-0
0
0
1
DLM [XX]
bit-15
bit-14
bit-13
bit-12
bit-11
bit-10
bit-9
bit-8
Note 1* The General Register set is accessible only when CS A/B is a logic 0.
Note 2* The Baud Rate register set is accessible only when CS A/B is a logic 0 and LCR bit-7 is a logic 1.
Note 3*
The value between the square brackets represents the registers initialized HEX value, X = N/A.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST16C2550IJ44 | DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S |
| ST16C2550IP40 | DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S |
| ST16C2550CJ44 | DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S |
| ST16C2550CP40 | Power Supply IC; Supply Voltage Max:6V; Output Voltage:1.3V; Package/Case:20-TSSOP; Leaded Process Compatible:No; Output Voltage Max:1.3V; Peak Reflow Compatible (260 C):No; Supply Voltage Min:2.7V; Mounting Type:Surface Mount |
| ST16C2550IQ48 | DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST16C2550CQ48-F | 功能描述:UART 接口集成電路 2.97V-5.5V 16B FIFO temp 0C to 70C; 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 |
| ST16C2550CQ48TR-F | 功能描述:UART 接口集成電路 DUAL UART W/16BYTE 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 |
| ST16C2550IJ44 | 制造商:Exar Corporation 功能描述: |
| ST16C2550IJ44-F | 功能描述:UART 接口集成電路 DUAL UART W/16BYTE 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 |
| ST16C2550IJ44TR-F | 制造商:Exar Corporation 功能描述:UART 2-CH 16Byte FIFO 3.3V/5V 44-Pin PLCC T/R 制造商:Exar Corporation 功能描述:ST16C2550IJ44TR-F |
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