Cc (Customized Condition Flag) - Epson 0C88832 Technical Manual

3 CPU AND MEMORY CONFIGURATION
Table 3.3.1 Vector addresses and
exception processing factors
Vector
Exception processing factor
address
000000H Reset
000002H Zero division
000004H Watchdog timer (NMI)
000006H Programmable timer 1 interrupt
000008H Programmable timer 0 interrupt
00000AH K10 input interrupt
00000CH K04–K07 input interrupt
00000EH K00–K03 input interrupt
000010H Serial I/F error interrupt
000012H Serial I/F receiving complete interrupt
000014H Serial I/F transmitting complete interrupt
000016H Stopwatch timer 100 Hz interrupt
000018H Stopwatch timer 10 Hz interrupt
00001AH Stopwatch timer 1 Hz interrupt
00001CH Clock timer 32 Hz interrupt
00001EH Clock timer 8 Hz interrupt
000020H Clock timer 2 Hz interrupt
000022H Clock timer 1 Hz interrupt
000024H System reserved (cannot be used)
000026H
: Software interrupt
0000FEH
For each vector address and the address after it, the
start address of the exception processing routine is
written into the subordinate and super ordinate
sequence. When an exception processing factor is
generated, the exception processing routine is
executed starting from the recorded address.
When multiple exception processing factors are
generated at the same time, execution starts with
the highest priority item.
The priority sequence shown in Table 3.3.1 assumes
that the interrupt priority levels are all the same.
The interrupt priority levels can be set by software
in each system. (See Section 5.14 "Interrupt and
Standby Status".)
Note: For exception processing other than reset,
SC (system condition flag) and PC (program
counter) are evacuated to the stack and
branches to the exception processing
routines. Consequently, when returning to
the main routine from exception processing
routines, please use the RETE instruction.
See the "E0C88 Core CPU Manual" for information
on CPU operations when an exception processing
factor is generated.
14
3.4 CC
The E0C88832/88862 does not use the customized
Priority
condition flag (CC) in the core CPU. Accordingly, it
cannot be used as a branching condition for the
High
conditional branching instruction (JRS, CARS).
↑
↓
Low
No
priority
rating
EPSON
(Customized Condition Flag)
E0C88832/88862 TECHNICAL MANUAL