UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 270

• Manufacturer Part Number: UPD78F0838
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

268
(d) Conflict between trigger detection and match with TPnCCR0 register
If the trigger is detected immediately after the INTTPnCC0 signal is generated, the 16-bit counter is
cleared to 0000H and continues counting up. Therefore, the active period of the TIOPn1 pin is extended
by time from generation of the INTTPnCC0 signal to trigger detection.
Remark
If the trigger is detected immediately before the INTTPnCC0 signal is generated, the INTTPnCC0 signal is
not generated. The 16-bit counter is cleared to 0000H, the TIOPn1 pin is asserted, and the counter
continues counting. Consequently, the inactive period of the PWM waveform is shortened.
Remark
External trigger input
External trigger input
n = 0 to 4
n = 0 to 4
INTTPnCC0 signal
INTTPnCC0 signal
(TIOPn0 pin input)
TPnCCR0 register
(TIOPn0 pin input)
TPnCCR0 register
TIOPn1 pin output
TIOPn1 pin output
16-bit counter
16-bit counter
CHAPTER 6 16-BIT TIMER/EVENT COUNTER P (TMP)
Preliminary User’s Manual U19748EJ1V0UD
FFFF
FFFF
0000
0000
D
D
0
D
0
D
0
0
1
1
D
D
Shortened
0
0
Extended
0000
0000
0000
0001