MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 176
![MOD5234 10/100 ETHERNET MODULE](/photos/28/91/289101/mod-100ir_sml.jpg)
MOD5234-100IR
Manufacturer Part Number
MOD5234-100IR
Description
MOD5234 10/100 ETHERNET MODULE
Manufacturer
NetBurner Inc
Type
Controllers & Processorsr
Datasheets
1.MOD5272-100IR.pdf
(3 pages)
2.MOD5234-100IR.pdf
(4 pages)
3.MOD5234-100IR.pdf
(754 pages)
Specifications of MOD5234-100IR
Interface
I²C, SPI, UART
Voltage - Supply
2.5V
Mounting Type
Surface Mount
Package / Case
Module
Product
Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Format
-
Baud Rates
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
Q4483564
- Current page: 176 of 754
- Download datasheet (13Mb)
Power Management
8.2.1.1
Implementation of low-power stop mode and exit from a low-power mode via an interrupt require
communication between the CPU and logic associated with the interrupt controller. The LPICR is
an 8-bit register that enables entry into low-power stop mode, and includes the setting of the
interrupt level needed to exit a low-power mode.
The following is the sequence of operations needed to enable this functionality:
8-2
1. The LPICR is programmed, setting the ENBSTOP bit (if stop mode is the desired
2. At the appropriate time, the processor executes the privileged STOP instruction. Once the
3. The entry into a low-power mode is processed by the low-power mode control logic, and
4. After entering the low-power mode, the interrupt controller enables a combinational logic
5. Once an appropriately high interrupt request level arrives, the interrupt controller signals
6. The low-power mode control logic senses the request signal and re-enables the appropriate
7. With the processor clocks enabled, the core processes the pending interrupt request.
low-power mode) and loading the appropriate interrupt priority level.
processor has stopped execution, it asserts a specific Processor Status (PST) encoding.
Issuing the STOP instruction when the LPICR[ENBSTOP] bit is set causes the SCM to
enter stop mode.
the appropriate clocks (usually those related to the high-speed processor core) are
disabled.
path which evaluates any unmasked interrupt requests. The device waits for an event to
generate an interrupt request with a priority level greater than the value programmed in
LPICR[XLPM_IPL[2:0]].
its presence, and the SCM responds by asserting the request to exit low-power mode.
clocks.
Low-Power Interrupt Control Register (LPICR)
The setting of the low-power mode select (LPMD) field in the power
management module’s low-power control register (LPCR) determines
which low-power mode the device enters when a STOP instruction is
issued.
If this field is set to enter stop mode, then the ENBSTOP bit in the
LPICR must also be set.
Only a fixed (external) interrupt can bring a device out of stop mode.
To exit from other low-power modes, such as doze or wait, either fixed
or programmable interrupts may be used; however, the module
generating the interrupt must be enabled in that particular low-power
mode.
MCF5235 Reference Manual, Rev. 2
NOTE
NOTE
Freescale Semiconductor
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