NEC uPD78056Y - Manual (Page 178)

178
CHAPTER 8 16-BIT TIMER/EVENT COUNTER
(5) Square-wave output
TM0 can output a square wave with any selected frequency.
Table 8-3. 16-Bit Timer/Event Counter Square-Wave Output Ranges
Minimum Pulse Width Maximum Pulse Width Resolution
MCS = 1 MCS = 0 MCS = 1 MCS = 0 MCS = 1 MCS = 0
2
×
TI00 input cycle 2 16 ×
TI00 input cycle TI00 input edge cycle
2 × 1/f
X
2 16 × 1/f
X
1/f
X
(400 ns) (13.1 ms) (200 ns)
2 × 1/f
X
2 2 × 1/f
X
2 16 × 1/f
X
2 17 × 1/f
X
1/f
X
2 × 1/f
X
(400 ns) (800 ns) (13.1 ms) (26.2 ms) (200 ns) (400 ns)
2 2 × 1/f
X
2 3 × 1/f
X
2 17 × 1/f
X
2 18 × 1/f
X
2 × 1/f
X
2 2 × 1/f
X
(800 ns) (1.6
µ
s) (26.2 ms) (52.4 ms) (400 ns) (800 ns)
2 3 ×
1/f X 2 4 ×
1/f X 2 18 ×
1/f X 2 19 ×
1/f X 2 2 ×
1/f X 2 3 ×
1/f X
(1.6
µ
s) (3.2
µ
s) (52.4 ms) (104.9 ms) (800 ns) (1.6
µ
s)
2
×
watch timer output cycle 2 16 ×
watch timer output cycle Watch timer output edge cycle
Remarks 1. f X : Main system clock oscillation frequency
2. MCS: Oscillation mode selection register (OSMS) bit 0
3. Values in parentheses when operated at f X = 5.0 MHz
(6) One-shot pulse output
TM0 is able to output one-shot pulse which can set any width of output pulse.
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