NEC uPD78056Y - Manual (Page 207)

207
CHAPTER 8 16-BIT TIMER/EVENT COUNTER
Count Clock
TM0 Count Value
CR00
INTTM0
TO0 Pin Output
0000 0001 0002 N-1 N 0000 0001 0002 N-1 N 0000
N
Figure 8-30. Square-Wave Output Operation Timing
Table 8-7. 16-Bit Timer/Event Count 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
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