3803L Datasheet, PDF (39/119 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

3803 Group (Spec.L)
b7
b0
Timer Z mode register
(TZM : address 002A16)
Timer Z operating mode bits
b2 b1 b0
0 0 0 : Timer/Event counter mode
0 0 1 : Pulse output mode
0 1 0 : Pulse period measurement mode
0 1 1 : Pulse width measurement mode
1 0 0 : Programmable waveform generating mode
1 0 1 : Programmable one-shot generating mode
1 1 0 : Not available
1 1 1 : Not available
Timer Z write control bit
0 : Writing data to both latch and timer simultaneously
1 : Writing data only to latch
Output level latch
0 : “L” output
1 : “H” output
CNTR2 active edge switch bit
0 : •Event counter mode: Count at rising edge
•Pulse output mode: Start outputting “H”
•Pulse period measurement mode: Measurement between two falling edges
•Pulse width measurement mode: Measurement of “H” term
•Programmable one-shot generating mode: After start outputting “L”,
“H” one-shot pulse generated
•Interrupt at falling edge
1 : •Event counter mode: Count at falling edge
•Pulse output mode: Start outputting “L”
•Pulse period measurement mode: Measurement between two rising edges
•Pulse width measurement mode: Measurement of “L” term
•Programmable one-shot generating mode: After start outputting “H”,
“L” one-shot pulse generated
•Interrupt at rising edge
Timer Z count stop bit
0 : Count start
1 : Count stop
Timer/Event counter mode switch bit⁽¹⁾
0 : Timer mode
1 : Event counter mode
Note 1: When selecting the modes except the timer/event counter mode, set “0” to this bit.
Fig 29. Structure of timer Z mode register
Rev.1.01 Jan 25, 2008 Page 39 of 117
REJ03B0212-0101