Rainbow Electronics W90P710CDG - Manual (Page 458)

W90P710CD/W90P710CDG
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Continued
BITS DESCRIPTIONS
[10:8]
TOC8,
TOC7,
TOC6
TOC8, TOC7, TOC6 (Time Out Configuration) control 24 bit time-
out counter 2 configuration.
TOC8,
TOC7,
TOC6
value OPERATION MODE
000 24 bit counter 2 is stopped
001 Counting the value stored in register TOIR 2 is started
after 001b is written in register in register TOC. An
interrupt is given if enabled, and bit TO2 is set within
register SCSR when the terminal count is reached. The
counter is stopped by writing 000b in register TOC, and
should be stopped before reloading new values in
register TOC.
010 Counter 2 starts counting the content of register TOIR2
on the first START bit (reception or transmission)
detected on the pin I/O after 010b is written in register
TOC. When counter 2 reaches its terminal count, an
interrupt is given if enable. Bit TO2 in register SCSR is
set. The counter is reloaded with TOIR2 and starts
counting on each subsequent START bit. It is possible
to change the content of TOIR2 during a count; the
current count will not be affected and the new count
value will be taken into account at the next START bit.
The count is stopped by writing 000b in register TOC,
011 Counter 2 starts counting the content of register TOIR2
on the first START bit (reception or transmission)
detected on the pin I/O after 010b is written in register
TOC. When counter 2 reaches its terminal count, an
interrupt is given if enable. Bit TO2 in register SCSR is
set. The count is stopped by writing 000b in register
TOC,
100 Same as value 000b, except that counter 2 will be
stopped at the end of the 12 th ETU following the first
START bit detected after 100b has been written in
register TOC
[7] nDBGACK_EN1
ICE Debug mode Acknowledge enable for time-out counter 1
0 = When DBGACK is high, the timer clock will be held
1= No matter what DBGACK is high or not, the timer clock will not be
held