參數(shù)資料
型號(hào): ST16C550IP40
廠商: EXAR CORP
元件分類: 微控制器/微處理器
英文描述: UART WITH 16-BYTE FIFO’s
中文描述: 1 CHANNEL(S), 1.5M bps, SERIAL COMM CONTROLLER, PDIP40
封裝: DIP-40
文件頁(yè)數(shù): 13/35頁(yè)
文件大?。?/td> 227K
代理商: ST16C550IP40
ST16C550
13
Rev. 4.30
REGISTER FUNCTIONAL DESCRIPTIONS
The following table delineates the assigned bit functions for the twelve ST16C550 internal registers. The assigned
bit functions are more fully defined in the following paragraphs.
Table 4, ST16C550 INTERNAL REGISTERS
A2 A1 A0
Register
[Default]
Note *2
BIT-7
BIT-6
BIT-5
BIT-4
BIT-3
BIT-2
BIT-1
BIT-0
General Register Set
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-2
bit-1
bit-0
0
0
1
IER [00]
0
0
0
0
modem
status
interrupt
receive
line
status
interrupt
transmit
holding
register
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]
FIFO’s
enabled
FIFO’s
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
loopback
enable
-OP2
-OP1
-RTS
-DTR
1
0
1
LSR [60]
FIFO
data
error
trans.
empty
trans.
holding
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
Baud Rate Generator Divisor Registers. Accessible when LCR bit-7 is set to logic 1.
Note 1*
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 BRG registers are accessible only when LCR bit-7 is set to a logic 1.
Note *2: The value represents the register’s initialized HEX value. An “X” signifies a 4-bit un-initialized nibble.
相關(guān)PDF資料
PDF描述
ST16C552AIJ68 DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT
ST16C552IJ68 DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT
ST16C552CJ68 Voltage Regulator IC; Package/Case:8-TSSOP; Output Current:350mA; Output Voltage:2.5V; Supply Voltage Max:6V; Current Rating:350mA; Leaded Process Compatible:No; Output Current Max:350mA; Output Voltage Max:2.5V RoHS Compliant: No
ST16C552ACJ68 DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT
ST16C650A 2.90V TO 5.5V UART WITH 32-BYTE FIFO
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C550IP40-F 功能描述:UART 接口集成電路 SINGLE UART W/16 BYTE 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
ST16C550IQ48 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
ST16C550IQ48-F 功能描述:UART 接口集成電路 2.97V-5.5V 16B FIFO temp -45 to 85C;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
ST16C550IQ48TR-F 功能描述:UART 接口集成電路 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
ST16C552 制造商:EXAR 制造商全稱:EXAR 功能描述:DUAL UART WITH 16-BYTE FIFO AND PARALLEL PRINTER PORT