MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 354

• Manufacturer Part Number: MMC2114
• Description: M CORE Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Serial Communications Interface Modules (SCI1 and SCI2)
17.2 Introduction
Advance Information
354
Serial Communications Interface Modules (SCI1 and SCI2)
17.11.3 Break Frames. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380
17.11.4 Idle Frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380
17.12 Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381
17.12.1 Frame Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381
17.12.2 Receiving a Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381
17.12.3 Data Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382
17.12.4 Framing Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387
17.12.5 Baud Rate Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387
17.12.5.1
17.12.5.2
17.12.6 Receiver Wakeup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390
17.12.6.1
17.12.6.2
17.13 Single-Wire Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392
17.14 Loop Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393
17.15 I/O Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 394
17.16 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395
17.17 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395
17.17.1 Transmit Data Register Empty . . . . . . . . . . . . . . . . . . . . . . 395
17.17.2 Transmission Complete . . . . . . . . . . . . . . . . . . . . . . . . . . . 395
17.17.3 Receive Data Register Full. . . . . . . . . . . . . . . . . . . . . . . . . 396
17.17.4 Idle Receiver Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396
17.17.5 Overrun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396
The serial communications interface (SCI) allows asynchronous serial
communications with peripheral devices and other microcontroller units
(MCU).
The MMC2114, MMC2113, and MMC2112 have two identical SCI
modules, each with its own control registers and input/output (I/O) pins.
In the text that follows, SCI register names are denoted generically.
Thus, SCIPORT refers interchangeably to SCI1PORT and SCI2PORT,
the port data registers for SCI1 and SCI2, respectively.
Freescale Semiconductor, Inc.
For More Information On This Product,
Slow Data Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
Idle Input Line Wakeup (WAKE = 0) . . . . . . . . . . . . . . . 390
Address Mark Wakeup (WAKE = 1). . . . . . . . . . . . . . . . 391
Go to: www.freescale.com
Fast Data Tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA