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C-43
REGISTERS
PTSSRV
PTSSRV
Address:
Reset State:
0006H
0000H
The PTS service (PTSSRV) register is used by the hardware to indicate that the final PTS interrupt has
been serviced by the PTS routine. When PTSCOUNT reaches zero, hardware clears the corre-
sponding PTSSEL bit and sets the PTSSRV bit, which requests the end-of-PTS interrupt. When the
end-of-PTS interrupt is called, hardware clears the PTSSRV bit. The PTSSEL bit must be set manually
to re-enable the PTS channel.
15 8
8XC196MC
— EXTINT PI — — — COMP3 EPA3
7 0
COMP2 EPA2
COMP1 EPA1 COMP0 EPA0 AD OVRTM
15 8
8XC196MD
— EXTINT PI EPA5 COMP4 EPA4 COMP3 EPA3
7 0
COMP2 EPA2
COMP1 EPA1 COMP0 EPA0 AD OVRTM
15 8
8XC196MH
— EXTINT WG SPI RI1 RI0 TI1 TI0
7 0
COMP3 COMP2
COMP1 EPA1 COMP0 EPA0 AD OVRTM
Bit
Number
Function
15 Reserved. This bit is undefined.
14:0
†
A bit is set by hardware to request an end-of-PTS interrupt for the corresponding interrupt
through its standard interrupt vector.
The PTS interrupt vector locations are as follows:
Bit Mnemonic PTS Vector Bit Mnemonic PTS Vector
EXTINT 205CH TI0 (MH) 2050H
PI (MC, MD)
††
205AH COMP2 (MC,MD) 204EH
WG (MH) 205AH COMP3 (MH) 204EH
EPA5 (MD) 2058H EPA2 (MC, MD) 204CH
SPI (MH)
††
2058H COMP2 (MH) 204CH
COMP4 (MD) 2056H COMP1 204AH
RI1 (MH) 2056H EPA1 2048H
EPA4 (MD) 2054H COMP0 2046H
RI0 (MH) 2054H EPA0 2044H
COMP3 (MC, MD) 2052H AD 2042H
TI1 (MH) 2052H OVRTM
††
2040H
EPA3 (MC, MD) 2050H
††
PTS service is not useful for multiplexed interrupts because the PTS cannot readily
determine the source of these interrupts.
†
On the 8XC196MC device bits 10–12 are reserved. These bits are undefined.