MC68EC000EI8 Freescale Semiconductor, MC68EC000EI8 Datasheet - Page 71

• Manufacturer Part Number: MC68EC000EI8
• Description: IC MPU 32BIT 85MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor
• Series: M68000r

Specifications of MC68EC000EI8

• Processor Type: M680x0 32-Bit
• Speed: 8MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Core Size: 32 Bit
• Cpu Speed: 8MHz
• Digital Ic Case Style: PLCC
• No. Of Pins: 68
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: 0°C To +70°C
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Clock Frequency: 8MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

Addressing Capabilities
After a put operation, the put address register points to the last item placed in the queue; the
unchanged get address register points to the last item removed from the queue. After a get
operation, the get address register points to the last item placed in the queue.
.
LOW MEMORY
(FREE)
PUT – (An)
LAST PUT
NEXT GET
GET – (Am)
LAST GET (FREE)
HIGH MEMORY
To implement the queue as a circular buffer, the get or put operation should be performed
first. Then the relevant address register should be checked and adjusted, if necessary.
Adding the buffer length (in bytes) to the address register contents adjusts the address
register.
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M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
MOTOROLA