HD404324FS datasheet(53/103 Pages) RENESAS

tên linh kiện	HD404324FS

Giải thích chi tiết về linh kiện	microcomputer designed to increase program productivity

PDF	103 Pages

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HD404054 Series/HD404094 Series

Registers for Timer C Operation: By using the following registers, timer C operation modes are selected

and the timer C count is read and written.

Timer mode register C1 (TMC1: $00D)

Timer mode register C2 (TMC2: $014)

Timer write register C (TWCL: $00E, TWCU: $00F)

Timer read register C (TRCL: $00E, TRCU: $00F)

• Timer mode register C1 (TMC1: $00D): Four-bit write-only register that selects the free-

running/reload timer function, input clock source, and the prescaler division ratio as shown in figure 34.

It is reset to $0 by MCU reset.

Writing to this register is valid from the second instruction execution cycle after the execution of the

previous timer mode register C1 write instruction. Setting timer C’s initialization by writing to timer

write register C (TWCL: $00E, TWCU: $00F) must be done after a mode change becomes valid.

Bit

Initial value

Read/Write

Bit name

TMC13

TMC12

TMC10

TMC11

Timer mode register C1 (TMC1: $00D)

2048tcyc

1024tcyc

512tcyc

128tcyc

32tcyc

8tcyc

4tcyc

2tcyc

TMC12

TMC10

TMC11

TMC13

Free-running/reload timer selection

Free-running timer

Reload timer

Input clock period

Figure 34 Timer Mode Register C1 (TMC1)

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