sc16c2552b NXP Semiconductors, sc16c2552b Datasheet - Page 37

• Manufacturer Part Number: sc16c2552b
• Description: Sc16c2552b 5 V, 3.3 V And 2.5 V Dual Uart, 5 Mbit/s Max. , With 16-byte Fifos
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Contents
1
2
3
4
5
5.1
5.2
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
7
7.1
7.2
7.2.1
7.2.2
7.3
7.3.1
7.3.2
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
© Koninklijke Philips Electronics N.V. 2004.
Printed in the U.S.A.
All rights are reserved. Reproduction in whole or in part is prohibited without the prior
written consent of the copyright owner.
The information presented in this document does not form part of any quotation or
contract, is believed to be accurate and reliable and may be changed without notice. No
liability will be accepted by the publisher for any consequence of its use. Publication
thereof does not convey nor imply any license under patent- or other industrial or
intellectual property rights.
Date of release: 13 December 2004
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Pinning information . . . . . . . . . . . . . . . . . . . . . . 3
Functional description . . . . . . . . . . . . . . . . . . . 6
Register descriptions . . . . . . . . . . . . . . . . . . . 12
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
UART A-B functions . . . . . . . . . . . . . . . . . . . . . 6
Internal registers. . . . . . . . . . . . . . . . . . . . . . . . 7
FIFO operation . . . . . . . . . . . . . . . . . . . . . . . . . 8
Time-out interrupts . . . . . . . . . . . . . . . . . . . . . . 8
Programmable baud rate generator . . . . . . . . . 8
DMA operation . . . . . . . . . . . . . . . . . . . . . . . . 10
Loop-back mode . . . . . . . . . . . . . . . . . . . . . . . 10
Transmit (THR) and Receive (RHR)
Interrupt Enable Register (IER) . . . . . . . . . . . 13
IER versus Transmit/Receive FIFO interrupt
IER versus Receive/Transmit FIFO polled
FIFO Control Register (FCR) . . . . . . . . . . . . . 15
DMA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
FIFO mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Interrupt Status Register (ISR) . . . . . . . . . . . . 17
Line Control Register (LCR) . . . . . . . . . . . . . . 18
Modem Control Register (MCR) . . . . . . . . . . . 19
Line Status Register (LSR) . . . . . . . . . . . . . . . 20
Modem Status Register (MSR). . . . . . . . . . . . 21
Scratchpad Register (SPR) . . . . . . . . . . . . . . 22
Alternate Function Register (AFR) . . . . . . . . . 22
SC16C2552B external reset conditions . . . . . 23
Holding Registers . . . . . . . . . . . . . . . . . . . . . 13
mode operation . . . . . . . . . . . . . . . . . . . . . . . 14
mode operation . . . . . . . . . . . . . . . . . . . . . . . 14
Document order number: 9397 750 14442
5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs
8
9
10
10.1
11
12
12.1
12.2
12.3
12.4
12.5
13
14
15
16
Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 23
Static characteristics . . . . . . . . . . . . . . . . . . . 24
Dynamic characteristics . . . . . . . . . . . . . . . . . 25
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 32
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Revision history . . . . . . . . . . . . . . . . . . . . . . . 35
Data sheet status. . . . . . . . . . . . . . . . . . . . . . . 36
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Timing diagrams. . . . . . . . . . . . . . . . . . . . . . . 26
Introduction to soldering surface mount
Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 33
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 33
Manual soldering . . . . . . . . . . . . . . . . . . . . . . 34
Package related soldering information . . . . . . 34
packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SC16C2552B