MC68340PV16VE Freescale Semiconductor, MC68340PV16VE Datasheet - Page 72
MC68340PV16VE
Manufacturer Part Number
MC68340PV16VE
Description
IC MCU 32BIT 16MHZ 144-LQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68340FE25E.pdf
(441 pages)
Specifications of MC68340PV16VE
Processor Type
M683xx 32-Bit
Speed
16MHz
Voltage
3.3V
Mounting Type
Surface Mount
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Part Number:
MC68340PV16VE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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3.4.2 LPSTOP Broadcast Cycle
The low power stop (LPSTOP) broadcast cycle is generated by the CPU32 executing the
LPSTOP instruction. Since the external bus interface must get a copy of the interrupt
mask level from the CPU32, the CPU32 performs a CPU space type 3 write with the mask
level encoded on the data bus, as shown in the following figure. The CPU space type 3
cycle waits for the bus to be available, and is shown externally to indicate to external
devices that the MC68340 is going into LPSTOP mode. If an external device requires
additional time to prepare for entry into LPSTOP mode, entry can be delayed by asserting
HALT . The SIM40 provides internal DSACK response to this cycle. For more information
on how the SIM40 responds to LPSTOP mode, see Section 4 System Integration
Module.
I2–I0—Interrupt Mask Level
MOTOROLA
15
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The interrupt mask level is encoded on bits 2–0 of the data bus during an LPSTOP
broadcast.
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Freescale Semiconductor, Inc.
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For More Information On This Product,
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MC68340 USER’S MANUAL
Go to: www.freescale.com
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I2
1
I1
3- 23
0
I0
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