MC68302EH16C Freescale Semiconductor, MC68302EH16C Datasheet - Page 66

• 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

System Integration Block (SIB)
3.2.1 Overview
An overview of IMP interrupt processing is presented in the following paragraphs.
3.2.1.1 IMP Interrupt Processing Overview
Interrupt processing on the IMP involves four steps. A typical sequence of these four steps
is as follows:
3-16
• DTACK Generation When Vectors Supplied Internally
1. The interrupt controller on the IMP collects interrupt events from on and off-chip pe-
2. The M68000 responds to the interrupt request by executing an interrupt acknowledge
ripherals, prioritizes them, and presents the highest priority request to the M68000
core.
PB8-PB11
TIMERS
SMCs
DMA
SCP
SCC1 EVENT
SCC2 EVENT
SCC3 EVENT
SCC2 MASK
SCC1 MASK
SCC3 MASK
REGISTER
REGISTER
REGISTER
REGISTER
REGISTER
REGISTER
(8 BITS)
(8 BITS)
(8 BITS)
(8 BITS)
(8 BITS)
(8 BITS)
Figure 3-2. Interrupt Controller Block Diagram
3
1
2
2
4
1
1
1
MC68302 USER’S MANUAL
M68000 CORE
DATA BUS
IRQ7/
IPL2
GENERATION
INTERRUPT
RESOLVER
PRIORITY
VECTOR
LOGIC
IRQ6/
IPL1
IRQ1/
IPL0
M68000 CORE
IPL2–IPL0 TO
MOTOROLA
IACK1
IACK6
IACK7