參數(shù)資料
型號(hào)： SC16C654BIBS
廠商： NXP Semiconductors N.V.
元件分類： 收發(fā)器
英文描述： 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit-s (max.), with 64-byte FIFOs and infrared (IrDA) encoder-decoder
封裝： SC16C654BIA68<SOT188-2 (PLCC68)|<<http://www.nxp.com/packages/SOT188-2.html<1<Always Pb-free,;SC16C654BIA68<SOT188-2 (PLCC68)|<<http://www.nxp.com/packages/SOT188-2.html&
文件頁(yè)數(shù)： 35/58頁(yè)
文件大?。?/td> 302K
代理商： SC16C654BIBS
9397 750 14965
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 20 June 2005
35 of 58
Philips Semiconductors
SC16C654B/654DB
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs
7.9 Scratchpad Register (SPR)
The SC16C654B/654DB provides a temporary data register to store 8 bits of user
information.
7.10 Enhanced Feature Register (EFR)
Enhanced features are enabled or disabled using this register.
Bits 0 through 4 provide single or dual character software flow control selection. When the
Xon1 and Xon2 and/or Xoff1 and Xoff2 modes are selected, the double 8-bit words are
concatenated into two sequential numbers.
Table 22:
Bit
7
Enhanced Feature Register bits description
Symbol
Description
EFR[7]
Auto CTS. Automatic CTS Flow Control.
logic 0 = automatic CTS flow control is disabled (normal default condition)
logic 1 = enable Automatic CTS flow control. Transmission will stop when
CTS goes to a logical 1. Transmission will resume when the CTS pin
returns to a logical 0.
EFR[6]
Auto RTS. Automatic RTS may be used for hardware flow control by enabling
EFR[6]. When Auto RTS is selected, an interrupt will be generated when the
receive FIFO is filled to the programmed trigger level and RTS will go to a
logic 1 at the next trigger level. RTS will return to a logic 0 when data is
unloaded below the next lower trigger level. The state of this register bit
changes with the status of the hardware flow control. RTS functions normally
when hardware flow control is disabled.
logic 0 = automatic RTS flow control is disabled (normal default condition)
logic 1 = enable Automatic RTS flow control
EFR[5]
Special Character Detect.
logic 0 = special character detect disabled (normal default condition)
logic 1 = special character detect enabled. The SC16C654B/654DB
compares each incoming receive character with Xoff2 data. If a match
exists, the received data will be transferred to FIFO and ISR[4] will be set to
indicate detection of special character. Bit-0 in the X-registers corresponds
with the LSB bit for the receive character. When this feature is enabled, the
normal software flow control must be disabled (EFR[3:0] must be set to a
logic 0).
EFR[4]
Enhanced function control bit. The content of IER[7:4], ISR[5:4], FCR[5:4],
and MCR[7:5] can be modified and latched. After modifying any bits in the
enhanced registers, EFR[4] can be set to a logic 0 to latch the new values.
This feature prevents existing software from altering or overwriting the
SC16C654B/654DB enhanced functions.
logic 0 = disable (normal default condition)
logic 1 = enable
EFR[3:0]
Cont-3:0 Tx, Rx control. Logic 0 or cleared is the default condition.
Combinations of software flow control can be selected by programming these
bits. See
Table 23
.
6
5
4
3:0
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參數(shù)描述
SC16C654BIBS,157 制造商:NXP Semiconductors 功能描述:
SC16C654BIBS,528 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
SC16C654BIBS,551 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
SC16C654BIBS,557 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
SC16C654BIBS-F 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH UART 64B 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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