3804H_M Datasheet, PDF (357/387 Pages) Renesas Technology Corp – 8-BIT CISC SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES

3804 Group (Spec.H)
APPENDIX
3.5 Control registers
Table 3.5.2 CNTR2 active edge switch bit function
Timer Z operation modes
Timer mode
CNTR2 active edge switch bit (bit 5 of address 002A16) contents
“0” CNTR2 interrupt request occurrence: Falling edge
; No influence to timer count
“1” CNTR2 interrupt request occurrence: Rising edge
Event counter mode
“0” Timer Z: Rising edge count
; No influence to timer count
CNTR2 interrupt request occurrence: Falling edge
“1” Timer Z: Falling edge count
Pulse output mode
CNTR2 interrupt request occurrence: Rising edge
“0” Pulse output start: Beginning at “H” level
CNTR2 interrupt request occurrence: Falling edge
“1” Pulse output start: Beginning at “L” level
CNTR2 interrupt request occurrence: Rising edge
Pulse period measurement mode _{“0” Timer Z: Period from falling edge to the next falling edge measurement}
CNTR2 interrupt request occurrence: Falling edge
“1” Timer Z: Period from rising edge to the next rising edge measurement
CNTR2 interrupt request occurrence: Rising edge
Pulse width measurement mode _{“0” Timer Z: “H” level width measurement}
CNTR2 interrupt request occurrence: Falling edge
“1” Timer Z: “L” level width measurement
CNTR2 interrupt request occurrence: Rising edge
Programmable one-shot generating _{“0” Timer Z: after start outputting “L”, “H” one-shot pulse generated}
mode
CNTR2 interrupt request occurrence: Falling edge
“1” Timer Z: after start outputting “H”, “L” one-shot pulse generated
CNTR2 interrupt request occurrence: Rising edge
Rev.1.00 Jan 14, 2005
REJ09B0212-0100Z
3-67