M38203M4 Datasheet, PDF (170/344 Pages) Mitsubishi Electric Semiconductor – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPLICATION
2.3 Timer X and timer Y
The minimum “L” pulse is:
105 ns .................................................................. at VCC = 4.0 V to 5.5 V
( ²⁵⁰ – 20 ns) ........................................... at VCC = 2.5 V to 4.0 V
VCC – 2
sPulse width HL continuously measurement mode
qIn the pulse width HL continuously measurement mode, set the bit 5 (corresponding to P55/CNTR1)
of the port P5 direction register (address 000B16) to “0” (input mode).
qThe CNTR1 interrupt request occurs at both edges of input pulses regardless of the value of the
CNTR1 active edge switch bit.
qThe minimum “H” pulse width in the pulse width HL continuously measurement mode is:
105 ns .................................................................. at VCC = 4.0 V to 5.5 V
( ²⁵⁰ – 20 ns) ........................................... at VCC = 2.5 V to 4.0 V
VCC – 2
The minimum “L” pulse is:
105 ns .................................................................. at VCC = 4.0 V to 5.5 V
( ²⁵⁰ – 20 ns) ........................................... at VCC = 2.5 V to 4.0 V
VCC – 2
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3820 GROUP USER’S MANUAL