MC68302EH16C Freescale Semiconductor, MC68302EH16C Datasheet - Page 112
MC68302EH16C
Manufacturer Part Number
MC68302EH16C
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.MC68302EH16C.pdf
(481 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68302EH16C
Manufacturer:
Freescale Semiconductor
Quantity:
135
Company:
Part Number:
MC68302EH16C
Manufacturer:
PANA
Quantity:
99
Company:
Part Number:
MC68302EH16C
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC68302EH16C
Manufacturer:
FREESCALE
Quantity:
20 000
Company:
Part Number:
MC68302EH16CB1
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Company:
Part Number:
MC68302EH16CR2
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
- MC68302AG20C PDF datasheet
- MC68302AG20C PDF datasheet #2
- MC68302AG20C PDF datasheet #3
- MC68302EH16C PDF datasheet #4
- Current page: 112 of 481
- Download datasheet (2Mb)
System Integration Block (SIB)
3.8.7.2.2 Lowest Power Mode
In this mode, the processor frequency can be further reduced beyond the minimum system
frequency limit (e.g., lower than the limit of 8 MHz). In this mode, the LPREC bit must be set
to one by the user, causing the M68000 core to be reset as the lowest power mode is exited.
The M68000 core is given an internal reset sequence for 16 to 32 clock cycles, and execu-
tion resumes with the fetching of the reset vector. The RESET pin does not externally assert
during the internal reset sequence. The entire M68000 core status is lost in this mode (A0–
A7, D0–D7, PC, SR, etc.); however, the IMP peripheral status is retained (this includes the
dual-port RAM, internal registers, BAR, etc.).
3.8.7.2.3 Lowest Power Mode with External Clock
After the IMP is safely in the lowest power mode the EXTAL frequency can be externally re-
duced to a lower frequency. In this mode, the clock dividing should not be done in the LPCD
bits, but rather externally on the EXTAL pin.
The major difference in this mode, is that the entire IMP is now running at a lower clock rate.
Any IMP on-chip peripherals and any bus cycles executed by one of the on-chip masters are
thus slowed down.
3-62
The following list gives a step-by-step example of how to use the lowest power mode. For
this example, an external wakeup signal is issued to the PB11 pin to exit the lowest power
mode.
1. Set the lower byte of the SCR (location $F7) to $FF. This sets the LPREC bit, the
2. Disable all interrupts except PB11 in the IMR.
3. Turn off any unneeded peripherals, such as the SCCs, by clearing the ENR and ENT
4. Execute the STOP instruction. Lowest power mode is now entered.
5. A wakeup signal comes from the system to the PB11 pin.
6. The IMP then generates the PB11 interrupt and a reset is automatically generated to
7. After the IMP is reset, software processing continues from the exception vector table
LPEN bit, and sets the clock divider to its maximum value (divide by 1024).
bits. Also turn off any unneeded baud rate generators by setting the EXTC bits in the
SCON registers. This procedure can save as much as 4 mA per SCC at 16.67 MHz.
(EXTC is cleared by default after reset.)
the M68000 core.
reset vector address. The M68000 is reset, but the rest of the IMP retains its state.
The input to EXTAL must be greater than or equal to 25kHz.
The use of external clocks with the SCCs allows the original se-
rial rates to be maintained; however, before attempting this, the
SCC performance data should be carefully reviewed (see Ap-
MC68302 USER’S MANUAL
NOTE
NOTE
MOTOROLA
Related parts for MC68302EH16C
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: