Intel 8XC196NT User Manual page 110

lects the corresponding vector location in special-purpose memory. This vector contains the start-
ing (base) address of the corresponding PTS control block (PTSCB) or interrupt service routine.
PTSCBs must be located on a quad-word boundary, in the internal register file. Interrupt service
routines must begin execution in page FFH, but can jump anywhere after the initial vector is tak-
en.
Table 5-3. Interrupt Sources, Vectors, and Priorities
Interrupt Source
Nonmaskable Interrupt
EXTINT Pin
Reserved
SIO Receive
SIO Transmit
SSIO Channel 1 Transfer
SSIO Channel 0 Transfer
Slave Port Command Buff Full CBF
Unimplemented Opcode
Software TRAP Instruction
Slave Port Input Buff Full
Slave Port Output Buff Empty
A/D Conversion Complete
EPA Capture/Compare 0
EPA Capture/Compare 1
EPA Capture/Compare 2
EPA Capture/Compare 3
EPA Capture/Compare 4–9,
EPA 0–9 Overrun,
EPA Compare 0–1,
Timer 1 Overflow,
Timer 2 Overflow
NOTES:
†
The PTS cannot determine the source of multiplexed interrupts, so do not use it to service these interrupts
when more than one multiplexed interrupt is unmasked.
††
These interrupts are individually prioritized in the EPAIPV register (see Table 10-16 on page 10-30).
Read the EPA pending registers (EPA_PEND and EPA_PEND1) to determine which source caused the
interrupt.
Interrupt Controller
Service
Mnemonic
NMI INT15
EXTINT INT14
— INT13
RI INT12
TI INT11
SSIO1 INT10
SSIO0 INT09
INT08
— —
— —
IBF INT07
OBE INT06
AD_DONE INT05
EPA0 INT04
EPA1 INT03
EPA2 INT02
EPA3 INT01
††
EPA x
INT00
STANDARD AND PTS INTERRUPTS
FF203EH 30 —
FF203CH 14 PTS14
FF203AH 13 PTS13
FF2038H 12 PTS12
FF2036H 11 PTS11
FF2034H 10 PTS10
FF2032H 09 PTS09
FF2030H 08 PTS08
FF2012H — —
FF2010H — —
FF200EH 07 PTS07
FF200CH 06 PTS06
FF200AH 05 PTS05
FF2008H 04 PTS04
FF2006H 03 PTS03
FF2004H 02 PTS02
FF2002H 01 PTS01
FF2000H 00 PTS00
PTS Service
— —
FF205CH 29
FF205AH 28
FF2058H 27
FF2056H 26
FF2054H 25
FF2052H 24
FF2050H 23
— —
— —
FF204EH 22
FF204CH 21
FF204AH 20
FF2048H 19
FF2046H 18
FF2044H 17
FF2042H 16
†
FF2040H 15
5-5