NEC uPD78P078 - Manual (Page 214)

214
CHAPTER 8 16-BIT TIMER/EVENT COUNTER
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 x TI00 input cycle 2 16 x TI00 input cycle TI00 input edge cycle
— 2 x 1/f X — 2 16 x 1/f X — 1/f X
(400 ns) (13.1 ms) (200 ns)
2 x 1/f
X
2 2 x 1/f
X
2 16 x 1/f
X
2 17 x 1/f
X
1/f
X
2 x 1/f
X
(400 ns) (800 ns) (13.1 ms) (26.2 ms) (200 ns) (400 ns)
2 2 x 1/f X 2 3 x 1/f X 2 17 x 1/f X 2 18 x 1/f X 2 x 1/f X 2 2 x 1/f X
(800 ns) (1.6
µ
s) (26.2 ms) (52.4 ms) (400 ns) (800 ns)
2 3 x 1/f X 2 4 x 1/f X 2 18 x 1/f X 2 19 x 1/f X 2 2 x 1/f X 2 3 x 1/f X
(1.6
µ
s) (3.2
µ
s) (52.4 ms) (104.9 ms) (800 ns) (1.6
µ
s)
2 x watch timer output cycle 2 16 x watch timer output cycle Watch timer output edge cycle
Remarks 1. f
X
: Main system clock oscillation frequency
2. MCS : Bit 0 of oscillation mode selection register (OSMS)
3. Figures in parentheses apply to operation with f X = 5.0 MHz.
TI00 Pin
Input
TM0 Count
Value
CR00
INTTM0
TO0 Pin
Output
0000 0001 0002 N – 1 N 0000 0001 0002 N – 1 N 0000
N