參數(shù)資料
型號: ST16C654D
廠商: Exar Corporation
英文描述: Voltage Regulator IC; Package/Case:8-MSOP; Output Current:300mA; Output Voltage:3.3V; Supply Voltage Max:6V; Current Rating:300mA; Leaded Process Compatible:No; Output Current Max:300mA; Output Voltage Max:3.3V RoHS Compliant: No
中文描述: 2.97V至5.5V四路UART的64字節(jié)FIFO
文件頁數(shù): 22/51頁
文件大小: 968K
代理商: ST16C654D
ST16C654/654D
2.97V TO 5.5V QUAD UART WITH 64-BYTE FIFO
REV. 5.0.0
22
3.0
UART INTERNAL REGISTERS
Each UART channel in the 654 has its own set of configuration registers selected by address lines A0, A1 and
A2 with a specific channel selected (See
Table 1
and
Table 2
). The complete register set is shown on
Table 9
and
Table 10
.
T
ABLE
9: UART CHANNEL A AND B UART INTERNAL REGISTERS
A2,A1,A0 A
DDRESSES
R
EGISTER
R
EAD
/W
RITE
C
OMMENTS
16C550 C
OMPATIBLE
R
EGISTERS
0 0 0
RHR - Receive Holding Register
THR - Transmit Holding Register
Read-only
Write-only
LCR[7] = 0
0 0 0
DLL - Div Latch Low Byte
Read/Write
LCR[7] = 1, LCR
0xBF
0 0 1
DLM - Div Latch High Byte
Read/Write
LCR[7] = 1, LCR
0xBF
0 0 1
IER - Interrupt Enable Register
Read/Write
LCR[7] = 0
0 1 0
ISR - Interrupt Status Register
FCR - FIFO Control Register
Read-only
Write-only
LCR[7] = 0
0 1 1
LCR - Line Control Register
Read/Write
1 0 0
MCR - Modem Control Register
Read/Write
LCR[7] = 0
1 0 1
LSR - Line Status Register
Reserved
Read-only
Write-only
LCR[7] = 0
1 1 0
MSR - Modem Status Register
Reserved
Read-only
Write-only
LCR[7] = 0
1 1 1
SPR - Scratch Pad Register
Read/Write
LCR[7] = 0
E
NHANCED
R
EGISTERS
0 1 0
EFR - Enhanced Function Reg
Read/Write
LCR = 0xBF
1 0 0
Xon-1 - Xon Character 1
Read/Write
LCR = 0xBF
1 0 1
Xon-2 - Xon Character 2
Read/Write
LCR = 0xBF
1 1 0
Xoff-1 - Xoff Character 1
Read/Write
LCR = 0xBF
1 1 1
Xoff-2 - Xoff Character 2
Read/Write
LCR = 0xBF
X X X
FSTAT - FIFO Status Register
Read-only
FSRS# pin is logic 0
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相關代理商/技術參數(shù)
參數(shù)描述
ST16C654DCQ64 制造商:Exar Corporation 功能描述:
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