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MC68L11E1B2 Datasheet(PDF) 10 Page - Motorola, Inc

Part # MC68L11E1B2
Description  Microcontrollers
Download  268 Pages
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC68L11E1B2 Datasheet(HTML) 10 Page - Motorola, Inc

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Table of Contents
Data Sheet
M68HC11E Family — Rev. 5
10
Table of Contents
MOTOROLA
5.5
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
5.5.1
Interrupt Recognition and Register Stacking . . . . . . . . . . . . . . . . . 100
5.5.2
Non-Maskable Interrupt Request (XIRQ) . . . . . . . . . . . . . . . . . . . . 100
5.5.3
Illegal Opcode Trap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
5.5.4
Software Interrupt (SWI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
5.5.5
Maskable Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
5.5.6
Reset and Interrupt Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
5.6
Low-Power Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
5.6.1
Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
5.6.2
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Section 6. Parallel Input/Output (I/O) Ports
6.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
6.2
Port A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
6.3
Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
6.4
Port C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
6.5
Port D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
6.6
Port E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
6.7
Handshake Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
6.8
Parallel I/O Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Section 7. Serial Communications Interface (SCI)
7.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
7.2
Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
7.3
Transmit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
7.4
Receive Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
7.5
Wakeup Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
7.5.1
Idle-Line Wakeup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
7.5.2
Address-Mark Wakeup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
7.6
SCI Error Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
7.7
SCI Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
7.7.1
Serial Communications Data Register . . . . . . . . . . . . . . . . . . . . . . 122
7.7.2
Serial Communications Control Register 1. . . . . . . . . . . . . . . . . . . 123
7.7.3
Serial Communications Control Register 2. . . . . . . . . . . . . . . . . . . 124
7.7.4
Serial Communication Status Register . . . . . . . . . . . . . . . . . . . . . . 125
7.7.5
Baud Rate Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
7.8
Status Flags and Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
7.9
Receiver Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


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