20-101-0525 Rabbit Semiconductor, 20-101-0525 Datasheet - Page 26
20-101-0525
Manufacturer Part Number
20-101-0525
Description
COMPUTER SINGLE-BOARD LP3500 FOX
Manufacturer
Rabbit Semiconductor
Specifications of 20-101-0525
Module/board Type
Single Board Computer Module
Product
Modules
Processor Type
Rabbit 3000
Sram
512 KB
Flash
512 KB
Timers
8 bit, 10 bit
Number Of I/os
26
Backup Battery
3 V Lithium Coin Type
Operating Voltage
3 V to 30 V
Board Size
93 mm x 66 mm x 11 mm
Description/function
Computer Module
For Use With/related Products
LP3500
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
316-1115
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Table 2 lists the power modes based on clock frequency that can be defined in software
using the
The LP3500 can operate at various power levels, depending on the clock frequency and on
which subsystems on the board are turned off using the
lists the LP3500 subsystems that can be turned off with the
The LP3500 processor turns off automatically when VIN is removed, and the processor
will not operate again until VIN is restored. The onboard battery provides backup for the
SRAM and the real-time clock. VIN must be applied to the LP3500 in order to run or set
the processor in any of the numbered modes listed in Table 2.
3.2.1 Setting the Power-Save Mode
The LP3500 can be placed in the power-save mode using one of three different software
calls,
depending on whether you wish to use Serial Port E, a simple timeout, or a digital input to
trigger the LP3500 to resume operation in one of the other power modes.
If you call
of the low-power mode. If you call
power-save mode when the specified time has elapsed. If you call
LP3500 is triggered out of the power-save mode when the specified channel is activated.
In addition,
ated with them to wake up the LP3500 after a specified period even in the absence of the
digital or serial triggers.
20
serCommAlert
timedAlert
digInAlert
NOTE: RxE always remains active when the above systems are turned off to allow the
RS-232
RS-485
A/D Converter
(LP3500 model only)
LCD/Keypad Module
All of the Above
powerMode
LP3500 to “listen” while it is in the
serCommAlert
LP3500 Section
digInAlert
Table 3. LP3500 Subsystems That Can Be Turned Off
, or
,
,
function.
and
, then any activity on Serial Port E will trigger the LP3500 out
serCommAlert
Receivers and transmitters are disabled, RxE remains active.
Transmitter is disabled.
ADS7870 internal oscillator is turned off.
LCD/keypad module is turned off.
All sections are disabled as described above.
timedAlert
power-save
have “backup” timeout parameters associ-
, then the LP3500 is triggered out of the
Description
mode.
devPowerSet
devPowerSet
digInAlert
function. Table 3
function.
Fox (LP3500)
, then the
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