EM6603
The processor now starts to execute the first instruction placed after the HALT instruction (for instance write of
SWBuff register to clear TESTvar[3]), except if there was a IRQ during the serial transmission. In this case the
CPU will go directly in the interrupt routine to serve other interrupt sources.
TestVar[3] stays high until SWBuff is rewritten. Before starting a second SWB action this bit must be cleared by
performing a dummy write on SWBuff address.
Because the data in the RAM are still present one can start transmitting the same data once again only by
recharging the SWBuff , LowSWB and HighSWB register together with AutoSWB bit and putting the EM6603
in HALT mode will start new transmission.
03/02 REV. G/439
24
www.emmicroelectronic.com
Copyright 2002, EM Microelectronic-Marin SA
EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
