参数资料
型号: SC16C754BIB80,557
厂商: NXP Semiconductors
文件页数: 15/50页
文件大小: 0K
描述: IC UART QUAD W/FIFO 80-LQFP
产品培训模块: Stand-Alone UARTs
标准包装: 595
通道数: 4,QUART
FIFO's: 64 字节
电源电压: 2.5V,3.3V,5V
带自动流量控制功能:
带故障启动位检测功能:
带调制解调器控制功能:
安装类型: 表面贴装
封装/外壳: 80-LQFP
供应商设备封装: 80-LQFP(12x12)
包装: 管件
产品目录页面: 828 (CN2011-ZH PDF)
其它名称: 568-1207
935274939557
SC16C754BIB80
SC16C754B_4
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 04 — 6 October 2008
22 of 51
NXP Semiconductors
SC16C754B
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs
Table 10 lists and describes the SC16C754B internal registers.
[1]
These registers are accessible only when LCR[7] = 0.
[2]
This bit can only be modied if register bit EFR[4] is enabled, that is, if enhanced functions are enabled.
[3]
The Special register set is accessible only when LCR[7] is set to a logic 1.
[4]
Enhanced feature register; Xon1/Xon2 and Xoff1/Xoff2 are accessible only when LCR is set to BFh.
Table 10.
SC16C754B internal registers
A2 A1 A0 Register Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Read/
Write
General register set[1]
0
RHR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R
0
THR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
W
0
1
IER
0/CTS
interrupt
enable[2]
0/RTS
interrupt
enable[2]
0/X Sleep
mode[2]
modem
status
interrupt
receive
line status
interrupt
THR
empty
interrupt
RX data
available
interrupt
R/W
0
1
0
FCR
RX
trigger
level
(MSB)
RX trigger
level (LSB)
0/TX
trigger
level
0/TX
trigger
level
(LSB)[2]
DMA
mode
select
TX FIFO
reset
RX FIFO
reset
FIFO
enable
W
0
1
0
IIR
FCR[0]
0/CTS,
RTS
0/Xoff
interrupt
priority
bit 2
interrupt
priority
bit 1
interrupt
priority
bit 0
interrupt
status
R
0
1
LCR
DLAB
break
control bit
set parity
parity type
select
parity
enable
number of
stop bits
word
length
bit 1
word
length
bit 0
R/W
1
0
MCR
1
× or
1
× /4
clock[2]
TCR and
TLR
enable[2]
0/Xon Any
0/enable
loopback
IRQ
enable
OP
FIFO
ready
enable
RTS
DTR
R/W
1
0
1
LSR
0/error in
RX FIFO
THR and
TSR empty
THR
empty
break
interrupt
framing
error
parity error overrun
error
data in
receiver
R
1
0
MSR
CD
RI
DSR
CTS
CD
RI
DSR
CTS
R
1
SPR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
1
0
TCR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
1
TLR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
1
FIFO
Rdy
RX FIFO
D status
RX FIFO
C status
RX FIFO
B status
RX FIFO
A status
TX FIFO
D status
TX FIFO
C status
TX FIFO
B status
TX FIFO
A status
R
Special register set[3]
0
DLL
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
0
1
DLM
bit 15
bit 14
bit 13
bit 12
bit 11
bit 10
bit 9
bit 8
R/W
Enhanced register set[4]
0
1
0
EFR
auto-CTS auto-RTS
special
character
detect
enable
enhanced
functions
software
ow
control
bit 3
software
ow
control
bit 2
software
ow
control
bit 1
software
ow
control
bit 0
R/W
1
0
Xon1
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
1
0
1
Xon2
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
1
0
Xoff1
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
1
Xoff2
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
R/W
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