DF2211NP24V Renesas Technology / Hitachi Semiconductor, DF2211NP24V Datasheet - Page 372

• Manufacturer Part Number: DF2211NP24V
• Description: H8S/2200 Series, 2212 Group, USB, RTC, HSS TNP-64B; Vcc= 2.7 to 3.6 volts, Temp= -20 to 75 C; Package: PVQN0064LB-A
• Manufacturer: Renesas Technology / Hitachi Semiconductor

Examples of Phase Counting Mode Operation: In phase counting mode, TCNT counts up or
down according to the phase difference between two external clocks. There are four modes,
according to the count conditions.
1. Phase counting mode 1
Table 9.20 Up/Down-Count Conditions in Phase Counting Mode 1
Legend:
Rev.7.00 Dec. 24, 2008 Page 318 of 698
REJ09B0074-0700
TCLKA (Channel 1)
TCLKC (Channel 2)
High level
Low level
High level
Low level
TCLKA (channel 1)
TCLKC (channel 2)
TCLKB (channel 1)
TCLKD (channel 2)
: Rising edge
: Falling edge
Figure 9.26 shows an example of phase counting mode 1 operation, and table 9.20 summarizes
the TCNT up/down-count conditions.
TCNT value
Figure 9.26 Example of Phase Counting Mode 1 Operation
Up-count
TCLKB (Channel 1)
TCLKD (Channel 2)
Low level
High level
High level
Low level
Operation
Up-count
Down-count
Down-count
Time