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参数资料
| 型号： | ST16C1551 |
| 厂商： | Exar Corporation |
| 英文描述： | UART with 16-Byte FIFO(通用异步接收器/发送器（带16字节的先进先出）) |
| 中文描述： | 的UART具有16字节FIFO（通用异步接收器/发送器（带16字节的先进先出）） |
| 文件页数： | 11/32页 |
| 文件大小： | 418K |
| 代理商： | ST16C1551 |
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ST16C1550/51
11
Rev. 3.10
Table 4, BAUD RATE GENERATOR PROGRAMMING TABLE (1.8432
MHz CLOCK):
Output
Baud Rate
Output
16 x Clock
Divisor
(Decimal)
User
DLM
Program
Value
(HEX)
DLL
16 x Clock
Divisor
(HEX)
Program
Value
(HEX)
50
75
110
150
300
600
1200
2400
3600
4800
7200
9600
19.2k
38.4k
57.6k
115.2k
2304
1536
1047
768
384
192
96
48
32
24
16
12
6
3
2
1
900
600
417
300
180
C0
60
30
20
18
10
0C
06
03
02
01
09
06
04
03
01
00
00
00
00
00
00
00
00
00
00
00
00
00
17
00
80
C0
60
30
20
18
10
0C
06
03
02
01
DMA Operation
The 155X FIFO trigger level provides additional flex-
ibility to the user for block mode operation. LSR bits 5-
6 provide an indication when the transmitter is empty
or has an empty location(s). The user can optionally
operate the transmit and receive FIFOs in the DMA
mode (FCR bit-3). When the transmit and receive
FIFOs are enabled (FCR bit 0 = logic 1) and the DMA
mode 0 is selected (FCR bit-3 = logic 0), the 155X
activates the interrupt output pin for each data trans-
mit or receive operation. When DMA mode 1 is
activated (FCR bits 0 and 3 = logic 1), the user takes
the advantage of block mode operation by loading or
unloading the FIFOs in a block sequence determined
by the receive trigger level and the transmit trigger
level. In this mode, the 155X sets the interrupt output
pin when characters in the transmit FIFO is below the
transmit trigger level, or the characters in the receive
FIFOs are above the receive trigger level.
Special (Enhanced Feature) Mode
The 155X supports the standard features of the
ST16C550. In addition the 155X supports two en-
hanced features not available on the ST16C550 pack-
age. These features are enabled by bit-5 of the IER
register and include a software controllable (SOFT)
reset and a power down feature. The power down
feature (controlled by MCR bit-7) provides the user
with the capability to conserve power when the pack-
age is not in actual use with out destroying internal
register configuration data. This allows quick turn-
arounds from power down to returned package opera-
tion. Each package type, with the exception of the 28
pin 1550, provides a buffered reset output that can be
controlled through user software. When enabled by
the IER register, MCR bit-7 can be used to power down
the 155X and/or MCR bit-2 can be used to initiate a
SOFT reset at the RST output pin. A third feature
available on 16C550 but not the 16C450, involves
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| 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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST16C1551CJ28 | 制造商:EXAR 制造商全称:EXAR 功能描述:2.97V TO 5.5V UART WITH 16-BYTE FIFO |
| ST16C1551CJ28-F | 功能描述:UART 接口集成电路 UART W/16BYTE FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| ST16C1551CP28 | 制造商:EXAR 制造商全称:EXAR 功能描述:2.97V TO 5.5V UART WITH 16-BYTE FIFO |
| ST16C1551CQ48 | 制造商:EXAR 制造商全称:EXAR 功能描述:2.97V TO 5.5V UART WITH 16-BYTE FIFO |
| ST16C1551CQ48-F | 功能描述:UART 接口集成电路 UART W/16BYTE FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
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