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參數(shù)資料
| 型號(hào)： | SC16C650BIA44 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 5 V, 3.3 V and 2.5 V UART with 32-byte FIFOs and infrared (IrDA) encoder/decoder |
| 中文描述： | 1 CHANNEL(S), 3M bps, SERIAL COMM CONTROLLER, PQCC44 |
| 封裝： | PLASTIC, MS-018, SOT187-2, LCC-44 |
| 文件頁數(shù)： | 16/51頁 |
| 文件大?。?/td> | 881K |
| 代理商： | SC16C650BIA44 |
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Philips Semiconductors
SC16C650B
UART with 32-byte FIFOs and IrDA encoder/decoder
Product data
Rev. 03 — 10 December 2004
16 of 51
9397 750 14451
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
6.8 DMA operation
The SC16C650B FIFO trigger level provides additional flexibility to the user for block
mode operation. The user can optionally operate the transmit and receive FIFOs in
the DMA mode (FCR[3]). The DMA mode affects the state of the RXRDY and TXRDY
output pins. Tables
6
and
7
show this.
6.9 Sleep mode
The SC16C650B is designed to operate with low power consumption. A special sleep
mode is included to further reduce power consumption when the chip is not being
used. With EFR[4] and IER[4] enabled (set to a logic 1), the SC16C650B enters the
sleep mode, but resumes normal operation when a start bit is detected, a change of
state on any of the modem input pins RI, CTS, DSR, DCD, RX pin, or a transmit data
is provided by the user. If the sleep mode is enabled and the SC16C650B is
awakened by one of the conditions described above, it will return to the sleep mode
automatically after the last character is transmitted or read by the user. In any case,
the sleep mode will not be entered while an interrupt(s) is pending. The SC16C650B
will stay in the sleep mode of operation until it is disabled by setting IER[4] to a
logic 0.
6.10 Loop-back mode
The internal loop-back capability allows on-board diagnostics. In the loop-back mode,
the normal modem interface pins are disconnected and reconfigured for loop-back
internally. MCR[0:3] register bits are used for controlling loop-back diagnostic testing.
In the loop-back mode, OUT1 and OUT2 in the MCR register (bits 2:3) control the
modem RI and DCD inputs, respectively. MCR signals DTR and RTS (bits 0:1) are
used to control the modem DSR and CTS inputs, respectively. The transmitter output
(TX) and the receiver input (RX) are disconnected from their associated interface
pins, and instead are connected together internally (see
Figure 8
). The CTS, DSR,
DCD, and RI are disconnected from their normal modem control input pins, and
instead are connected internally to DTR, RTS, OUT1 and OUT2. Loop-back test data
is entered into the transmit holding register via the user data bus interface, D0-D7.
The transmit UART serializes the data and passes the serial data to the receive
UART via the internal loop-back connection. The receive UART converts the serial
data back into parallel data that is then made available at the user data interface
D0-D7. The user optionally compares the received data to the initial transmitted data
for verifying error-free operation of the UART TX/RX circuits.
Table 6:
Non-DMA mode
1 = FIFO empty
0 = at least 1 byte in FIFO
Effect of DMA mode on state of RXRDY pin
DMA mode
0-to-1 transition when FIFO empties
1-to-0 transition when FIFO reaches trigger level,
or time-out occurs
Table 7:
Non-DMA mode
1 = at least 1 byte in FIFO
0 = FIFO empty
Effect of DMA mode on state of TXRDY pin
DMA mode
0-to-1 transition when FIFO becomes full
1-to-0 transition when FIFO has 1 empty space
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC16C650BIA44,512 | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH 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 |
| SC16C650BIA44,518 | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH 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 |
| SC16C650BIA44,529 | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH 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 |
| SC16C650BIA44-S | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH UART 32B 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 |
| SC16C650BIA44-T | 功能描述:UART 接口集成電路 16CB 2.5V-5V 1CH UART 32B 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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