MC68302EH20C Freescale Semiconductor, MC68302EH20C Datasheet - Page 71
MC68302EH20C
Manufacturer Part Number
MC68302EH20C
Description
IC MPU MULTI-PROTOCOL 132-PQFP
Manufacturer
Freescale Semiconductor
Datasheets
1.MC68302AG20C.pdf
(4 pages)
2.MC68302AG20C.pdf
(2 pages)
3.MC68302AG20C.pdf
(13 pages)
4.MC68302EH20C.pdf
(481 pages)
Specifications of MC68302EH20C
Processor Type
M683xx 32-Bit
Speed
20MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
132-MQFP, 132-PQFP
Family Name
M68000
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
20MHz
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
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68302EH20C
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC68302EH20C
Manufacturer:
FREESCALE
Quantity:
20 000
Company:
Part Number:
MC68302EH20CB1
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MC68302EH20CR2
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
- MC68302AG20C PDF datasheet
- MC68302AG20C PDF datasheet #2
- MC68302AG20C PDF datasheet #3
- MC68302EH20C PDF datasheet #4
- Current page: 71 of 481
- Download datasheet (2Mb)
3.2.4 Interrupt Vector
Pending EXRQ interrupts and unmasked INRQ interrupts are presented to the M68000 core
in order of priority. The M68000 core responds to an interrupt request by initiating an inter-
rupt acknowledge cycle to receive a vector number, which allows the core to locate the in-
terrupt's service routine.
If an INRQ source generated the interrupt, the interrupt controller always provides the vector
corresponding to the highest priority, unmasked, pending interrupt. If an EXRQ source gen-
erated the interrupt, three options are available to generate the vector.
Option 1. By programming the GIMR, the user can enable the interrupt controller to provide
the vector for any combination of EXRQ interrupt levels 1, 6, and 7. This is available regard-
less of whether normal or dedicated mode is selected. Whenever a vector is provided by the
interrupt controller, DTACK is also provided by the interrupt controller during that interrupt
acknowledge cycle. DTACK is an output from the IMP in this case.
The IMP can generate vectors for up to seven external peripherals by connecting the exter-
nal request lines to IRQ7, IRQ6, IRQ1, PB11, PB10, PB9, and PB8. PB11, PB10, PB9, and
PB8 are prioritized within level 4.
MOTOROLA
EVENT
MASK
Figure 3-3. Interrupt Request Logic Diagram for SCCs
BIT
BIT
SCCM
SCCE
8-INPUT
MC68302 USER’S MANUAL
OR
IPR
IMR
16-INPUT
OR
INTERRUPT
RESOLVER
PRIORITY
INTERNAL IPL2–IPL0
TO THE M68000 CORE
System Integration Block (SIB)
3-21
Related parts for MC68302EH20C
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
MC68302 Configuring the Chip Selects on the MC68302
Manufacturer:
Motorola / Freescale Semiconductor
Part Number:
Description:
MC68302 Design Concept - Expanding Interrupts on the MC68302
Manufacturer:
Motorola / Freescale Semiconductor
Part Number:
Description:
MC68302 MC68302 Adapting a WAN Controller to a LAN Environment
Manufacturer:
Motorola / Freescale Semiconductor
Part Number:
Description:
MC68302 EKB Applications - Power Measurements on the MC68302
Manufacturer:
Motorola / Freescale Semiconductor
Part Number:
Description:
MC68302 Interfacing the MC68020 to a Slave MC68302
Manufacturer:
Motorola / Freescale Semiconductor
Part Number:
Description:
MC68302 MC68302 Software Performance
Manufacturer:
Motorola / Freescale Semiconductor
Part Number:
Description:
MC68302 Evaluating EDX on the ADS302
Manufacturer:
Motorola / Freescale Semiconductor
Part Number:
Description:
MC68302 Design Advisory #1 - MC68SC302 Passive ISDN Protocol Engine
Manufacturer:
Motorola / Freescale Semiconductor
Part Number:
Description:
MC68302, MC68360, and MPC860 Characteristics and Design Notes for Crystal Feedback Oscillators
Manufacturer:
Motorola / Freescale Semiconductor
Part Number:
Description:
Mc68302 Integrated Multi-protocol Processor
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet: