MC68302EH16C Freescale Semiconductor, MC68302EH16C Datasheet - Page 165

• Manufacturer Part Number: MC68302EH16C
• Description: IC MPU MULTI-PROTOCOL 132-PQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68302EH16C

• Processor Type: M683xx 32-Bit
• Speed: 16MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-MQFP, 132-PQFP
• Controller Family/series: 68K
• Core Size: 32 Bit
• Ram Memory Size: 1152Byte
• Cpu Speed: 16MHz
• No. Of Timers: 3
• Embedded Interface Type: SCP, TDM
• Digital Ic Case Style: PQFP
• Rohs Compliant: Yes
• Family Name: M68000
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 16MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 5V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 132
• Package Type: PQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

(RTS). Other modem lines such as data set ready (DSR) and data terminal ready (DTR) can
be supported through the parallel I/O pins.
The UART consists of separate transmit and receive sections whose operations are asyn-
chronous with the M68000 core and may be either synchronous or asynchronous with re-
spect to each other. Each clock can be supplied either from the baud rate generator or from
the external pins.
The UART key features are as follows:
4.5.11.1 Normal Asynchronous Mode
In the normal asynchronous mode, the receive shift register receives the incoming data on
the RXD pin. The length and the format of the serial word in bits are defined by the control
bits in the UART mode register. The order of reception is as follows:
The receiver samples each bit of the incoming data three times around its center. The value
of the bit is determined by the majority of those samples. If all the samples do not agree, a
noise indication counter is incremented. When a complete character has been clocked in,
the contents of the shift register are transferred to the UART receive data register. If there
is an error in this character, then the appropriate error bits will be set by the IMP.
MOTOROLA
• Flexible Message-Oriented Data Buffers
• Multidrop Operation
• Receiver Wakeup on IDLE Line or Address Mode
• Eight Control Character Comparison Registers
• Two Address Comparison Registers
• Four 16-Bit Error Counters
• Programmable Data Length (7 or 8 Bits)
• Programmable 1 or 2 Stop Bits with Fractional Stop Bits
• Even/Odd/Force/No Parity Generation
• Even/Odd/No Parity Check
• Frame Error, Noise Error, Break, and IDLE Detection
• Transmits Preamble and Break Sequences
• Freeze Transmission Option
• Maintenance of Four 16-Bit Error Counters
• Provides Asynchronous Link for DDCMP Use
• Flow Control Character Transmission Supported
Start Bit
Seven or Eight Data Bits with the Least Significant Bit First
Address/Data Bit (Optional)
Parity Bit (Optional)
Stop Bits
MC68302 USER’S MANUAL
Communications Processor (CP)
4-45