Texas Instruments TMS320C2XX User Manual
Page 575
Index
Index-12
interrupt
(continued)
phases of operation
priorities
’C203/C204
’C209
11-10
in interrupt acknowledgement process
registers
interrupt control register (ICR)
interrupt flag register (IFR)
’C209
interrupt mask register (IMR)
’C209
software interrupt
definition
instructions
special cases
clearing ICR flag bits
clearing IFR flag bit after INTR instruc-
tion
clearing IFR flag bits set by serial port inter-
rupts
controlling INT2 and INT3 with ICR
requesting INT2 and INT3
table
vector locations
’C203/C204
’C209
11-10
interrupt acknowledge signal (IACK)
interrupt control register (ICR)
bits
quick reference
interrupt flag register (IFR)
bits
’C203/C204
’C209
11-12
clearing interrupts
quick reference
interrupt latency
definition
description
interrupt mask register (IMR)
bits
’C203/C204
’C209
11-13
in interrupt acknowledgement process
quick reference
interrupt mode bit (INTM)
interrupt phases of operation
interrupt service routines (ISRs)
definition
ISRs within ISRs
saving and restoring context
INTM (interrupt mode bit)
effect on power-down mode
in interrupt acknowledgement process
INTR instruction
introduction
operand (K) values
’C203/C204
’C209
11-10
introduction
TMS320 devices
TMS320C2xx devices
IO0–IO3 (bits)
reading current logic level on pins
IO0–IO3
IO0–IO3 (pins)
IOSR (I/O status register)
detecting change on pins IO0–IO3
quick reference
reading current logic level on pins
IO0–IO3
IR (instruction register), definition
IS (I/O space select pin)
definition
shown in figure
ISR (interrupt service routine)
definition
ISRs within ISRs
saving and restoring context
ISWS bit(s)
’C203/C204
’C209
J
JTAG
JTAG emulator
buffered signals
connection to target system
no signal buffering
K
key features of the ’C2x