Functional Overview
3.6.1 External Interrupts
Table 3−13. External Interrupts Registers
NAME
XINT1CR
ADDRESS
0x00 7070
0x00 7071
SIZE (x16)
DESCRIPTION
1
1
XINT1 control register
XINT2 control register
XINT2CR
0x00 7072
0x00 7076
reserved
5
XNMICR
0x00 7077
0x00 7078
0x00 7079
1
1
1
XNMI control register
XINT1 counter register
XINT2 counter register
XINT1CTR
XINT2CTR
0x00 707A
0x00 707E
reserved
5
1
XNMICTR
0x00 707F
XNMI counter register
Each external interrupt can be enabled/disabled or qualified using positive or negative going edge. For more
information, see the TMS320x281x System Control and Interrupts Reference Guide (literature number
SPRU078).
49
April 2001 − Revised December 2004
SPRS174L
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