參數(shù)資料
型號: ST16C554
廠商: Exar Corporation
英文描述: Quad UART with 16-Byte FIFO(四通用異步接收器/發(fā)送器(帶16字節(jié)的先進(jìn)先出))
中文描述: 四路的UART具有16字節(jié)FIFO(四通用異步接收器/發(fā)送器(帶16字節(jié)的先進(jìn)先出))
文件頁數(shù): 17/40頁
文件大小: 506K
代理商: ST16C554
ST16C554/554D/68C554
17
Rev. 3.10
REGISTER FUNCTIONAL DESCRIPTIONS
The following table delineates the assigned bit functions for the fifteen 554D internal registers. The assigned
bit functions are more fully defined in the following paragraphs.
Table 6, ST16C554D INTERNAL REGISTERS
A2 A1 A0
Register
[Note *5]
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
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/
INTx
enable
-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
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 *
2
: The Special register set is accessible only when LCR bit-7 is set to 1.
相關(guān)PDF資料
PDF描述
ST16C554D Quad UART with 16-Byte FIFO(四通用異步接收器/發(fā)送器(帶16字節(jié)的先進(jìn)先出))
ST16C580 UART WITH 16-BYTE FIFO’s AND INFRARED (IrDA) ENCODER/DECODER
ST16C580CQ48 UART WITH 16-BYTE FIFO’s AND INFRARED (IrDA) ENCODER/DECODER
ST16C580IJ44 UART WITH 16-BYTE FIFO’s AND INFRARED (IrDA) ENCODER/DECODER
ST16C580IP40 UART WITH 16-BYTE FIFO’s AND INFRARED (IrDA) ENCODER/DECODER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C554CJ-0A-EVB 功能描述:界面開發(fā)工具 Supports C554D 68 ld PLCC, ISA Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
ST16C554CQ-0A-EVB 功能描述:界面開發(fā)工具 Supports C554 64 ld TQFP, ISA Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
ST16C554CQ64 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V QUAD UART WITH 16-BYTE FIFO
ST16C554CQ64-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
ST16C554D 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD UART WITH 16-BYTE FIFOS