 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
NS16C2552-C Datasheet(PDF) 5 Page - Texas Instruments |
|
||||||||||||||||||||||||||||||
NS16C2552-C Datasheet(HTML) 5 Page - Texas Instruments |
|
|
5 / 53 page  NS16C2552, NS16C2752 www.ti.com SNLS238D – AUGUST 2006 – REVISED APRIL 2013 Signal PLCC TQFP Type Description Name Pin # Pin # RI1 I 43 41 UART Ring-detector: RI2 31 27 When low, RI indicates that a telephone ringing is active. The RI signal is a MODEM status input and can be read for the appropriate channel in MSR[6]. This bit reflects the complement of the RI signal. MSR[2] indicates whether the RI input signal has changed state from low to high since the previous reading of the MSR. Note: Whenever the RI bit of the MSR changes from a high to a low state, an interrupt is generated if the MODEM Status Interrupt is enabled. MF1 O 35 32 UART Multi-function Pin: MF2 19 14 MF can be programmed for any one of three signal functions OUT2, BAUDOUT or RXRDY. Bits 2 and 1 of the Alternate Function Register select which output signal will be present on this pin. OUT2 is the default signal and it is selected immediately after master reset or power-up. The OUT2 can be set active low by programming bit 3 (OUT2) of the MCR to a logic 1. A Master Reset operation sets this signal to its inactive (high) state. Loop Mode holds this signal in its inactive state. The BAUDOUT signal is the 16X clock output that drives the transmitter and receiver logic of the associated serial channel. This signal is the result of the XIN clock divided by the value in the Divisor Latch Registers. The BAUDOUT signal for each channel is internally connected to provide the receiver clock (formerly RCLK on the PC16550D). The RXRDY signal can be used to request a DMA transfer of data from the RCVR FIFO. Details regarding the active and inactive states of this signal are described in FIFO CONTROL REGISTER (FCR) and DMA OPERATION. CLOCK AND RESET Signal Type PLCC TQFP Description Name Pin # Pin # XIN I 11 5 External Crystal Input: XIN input is used in conjunction with XOUT to form a feedback circuit for the baud rate generator's oscillator. If a clock signal is generated off-chip, then it should drive the baud rate generator through this pin. Refer to CLOCK INPUT. XOUT O 13 7 External Crystal Output: XOUT output is used in conjunction with XIN to form a feedback circuit for the baud rate generator's oscillator. If the clock signal is generated off-chip, then this pin is unused. Refer to CLOCK INPUT. MR I 21 16 Master Reset: When MR input is high, it clears all the registers including Tx and Rx serial shift registers (except the Receiver Buffer, Transmitter Holding, and Divisor Latches). The output signals, such as OUT2, RTS, DTR, INTR, and SOUT are also affected by an active MR input. (Refer to Table 26 and RESET). POWER AND GROUND Signal PLCC TQFP Type Description Name Pin # Pin # VCC I 33 29 VCC: 44 42 +2.97V to +5.5V supply. GND I 12 6 GND: 22 17 Device ground reference. NC I N/A 19 No Connection: 37 These pins are only available on the TQFP package. Copyright © 2006–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: NS16C2552 NS16C2752 |
Similar Part No. - NS16C2552-C |
|
Similar Description - NS16C2552-C |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
