MC68340AG16E Freescale Semiconductor, MC68340AG16E Datasheet - Page 341

• Manufacturer Part Number: MC68340AG16E
• Description: IC MPU 32BIT 16MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68340AG16E

• Processor Type: M683xx 32-Bit
• Speed: 16MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Controller Family/series: 68K
• Core Size: 32 Bit
• No. Of I/o's: 16
• Cpu Speed: 16MHz
• No. Of Timers: 2
• Embedded Interface Type: UART
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Processor Series: M683xx
• Core: CPU32
• Maximum Clock Frequency: 16 MHz
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Details

7.5 SERIAL MODULE INITIALIZATION SEQUENCE
The following paragraphs discuss a suggested method for initializing the serial module.
7.5.1 Serial Module Configuration
If the serial capability of the MC68340 is being used, the following steps are required to
properly initialize the serial module.
Command Register (CR)
The following steps program both channels:
Module Configuration Register (MCR)
Interrupt Vector Register (IVR)
Interrupt Level Register (ILR)
Interrupt Enable Register (IER)
Auxiliary Control Register (ACR)
Output Port Control Register (OPCR)
Interrupt Status Register (ISR)
7-46
• Reset the receiver and transmitter for each channel.
• Initialize the stop bit (STP) for normal operation.
• Select whether to respond to or ignore FREEZE (FRZx bits).
• Select the input capture clock (ICCS bit).
• Select the access privilege for the supervisor/user registers (SUPV bit).
• Select the interrupt arbitration level for the serial module (IARBx bits).
• Program the vector number for a serial module interrupt.
• Program the interrupt priority level for a serial module interrupt.
• Enable the desired interrupt sources.
• Select baud rate set (BRG bit).
• Initialize the input enable control (IEC bits).
• Select the function of the output port pins.
• The XTAL_RDY bit should be polled until it is cleared to ensure that an unstable
crystal input is not applied to the baud rate generator.
The serial module registers can only be accessed by byte operations.
Freescale Semiconductor, Inc.
For More Information On This Product,
MC68340 USER’S MANUAL
Go to: www.freescale.com
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MOTOROLA