ADLINK PCI-8258 - Manual (Page 179)

Motion Control Theory 165
PCI-8254 / PCI-8258
Figure 4-66: Compare trigger block diagram
TRG / PWM / Timer relevant parameter setup
NO Define Description
0x06 TGR_TRG_EN TRG0~3 output switch
0x10~0x13 TGR_TRGx_SRC
Set up TRG0~3 trigger source. You can
have multiple sources to choose.
0x14~0x17 TGR_TRGx_PWD Set up TRG0~3 pulse width
0x18~1B TGR_TRGx_LOGIC Set up TRG0~3 logic level
0x1C~1F TGR_TRGx_TGL Set up TRG0~3 output format
0x20 TIMR_ITV Set up timer interval
0x21 TIMR_DIR Set up timer counting direction
0x22 TIMR_RING_EN Set up timer counter overflow activity
0x23 TIMR_EN Start up timer