參數(shù)資料
型號： SC16C554B
廠商： NXP Semiconductors N.V.
英文描述： 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs
中文描述： 5伏，3.3伏和2.5伏兆5四異步/秒（最大），16字節(jié)的FIFO
文件頁數(shù)： 17/51頁
文件大?。?/td> 253K
代理商： SC16C554B
9397 750 13133
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 9 February 2005
17 of 51
Philips Semiconductors
SC16C554B/554DB
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs
6.4.3
Enabling autoflow control and auto-CTS
Autoflow control is enabled by setting MCR[5] and MCR[1].
6.4.4
Auto-CTS and auto-RTS functional timing
The receiver FIFO trigger level can be set to 1, 4, 8, or 14 bytes. These are described in
Figure 9
and
Figure 10
.
Table 7:
MCR[5]
1
1
0
Enabling autoflow control and auto-CTS
MCR[1]
1
0
X
Selection
auto RTS and CTS
auto CTS
disable
(1) When CTS is LOW, the transmitter keeps sending serial data out.
(2) If CTS goes HIGH before the middle of the last stop bit of the current byte, the transmitter finishes sending the current byte,
but is does not send the next byte.
(3) When CTS goes from HIGH to LOW, the transmitter begins sending data again.
Fig 8.
CTS functional timing waveforms
Start
bits 0 to 7
Stop
TX
CTS
002aaa049
Start
bits 0 to 7
Stop
Start
bits 0 to 7
Stop
(1) N = RCV FIFO trigger level (1, 4, or 8 bytes).
(2) The two blocks in dashed lines cover the case where an additional byte is sent as described in the preceding auto-RTS
section.
Fig 9.
RTS functional timing waveforms, RCV FIFO trigger level = 1, 4, or 8 bytes
Start
byte N
Start
byte N + 1
Start
byte
Stop
Stop
Stop
RX
RTS
IOR
(RD RBR)
N
N + 1
1
2
002aaa050
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC16C554B_10 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs
SC16C554BIB64 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH UART 16B 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
SC16C554BIB64,128 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH 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
SC16C554BIB64,128 PBF 制造商:NXP Semiconductors 功能描述:
SC16C554BIB64,151 功能描述:UART 接口集成電路 4CH. UART 16B 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
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