Micronas SDA 6000, User Manual

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SDA 6000
PRELIMINARY DATA SHEET
Version 2.1
System Control & Configuration
6 - 16 Micronas
Status of Output Pins during Idle and Power Down Mode
During Idle mode the CPU is stopped, while all peripherals continue their operation in the
same way previously described. Therefore all ports pins, which are configured as
general purpose output pins, output the last data value which was written to their port
output latches. If the alternate output function of a port pin is used by a peripheral, the
state of the pin is determined by the operation of the peripheral.
Port 4 outputs the segment address for the last access on the pins that were selected
during reset, otherwise the output pins of Port 4 represent the port latch data.
During Power Down mode the oscillator and the clocks to the CPU and peripherals are
turned off. Like in idle mode, all port pins, which are configured as general purpose
output pins, output the last data value which was written to their port output latches.
When the alternate output function of a port pin is used by a peripheral the state of this
pin is determined by the last action of the peripheral before the clocks were switched off.
SYSCON1 Reset Value: 0001
H
Note: This register is a protected register; it’s security level is automatically set to full
write protection after execution of the EINIT instruction.
Bit Function
SLEEPCON Power Save Mode Selection
00: Idle Mode
01: Sleep Mode
10: reserved
11: Power
Down Mode
5 4 3 2 1 0 11 10 9 8 7 6 15 14 13 12
rw
- - -
-
- SLEEPCON - - - - - - - - -