UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 214

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

(5) External event counter
8.2 CONFIGURATION
174
Timer/counter 0 consists of the following registers:
The block diagram of timer/counter 0 is shown in Figure 8-1.
Counts the clock pulses input from the external interrupt request input pin (INTP3).
The clocks that can be input to timer/counter 0 are shown in Table 8-4.
• Timer register (TM0)
• Compare register (CR00, CR01)
• Capture register (CR02)
Maximum frequency
Minimum pulse width
(High and low levels)
1
Table 8-4 Timer/Counter 0 Pulse Width Measurement Time
1
2
CHAPTER 8 TIMER/COUNTER 0
When Counting One Edge
f
CLK
4/f
/8 (1.56 MHz)
CLK
(0.32 s)
( ): When f
When Counting Both Edges
f
CLK
4/f
/8 (1.56 MHz)
CLK
CLK
(0.32 s)
= 12.5 MHz