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2 tcdt: timer data register – FUJITSU MB91460 SERIES FR60 User Manual

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Chapter 35 Free-Run Timer

4.Registers

4.2 TCDT: Timer Data Register

This register can read 16-bit free-run timer count values.

• TCDT0 (free-run timer 0): Address 01F0h (access:

Half-word, Word

)

• TCDT1 (free-run timer 1): Address 01F4h (access:

Half-word, Word

)

• TCDT2 (free-run timer 2): Address 01F8h (access:

Half-word, Word

)

• TCDT3 (free-run timer 3): Address 01FCh (access:

Half-word, Word

)

• TCDT4 (free-run timer 4): Address 02F0h (access:

Half-word, Word

)

• TCDT5 (free-run timer 5): Address 02F4h (access:

Half-word, Word

)

• TCDT6 (free-run timer 6): Address 02F8h (access:

Half-word, Word

)

• TCDT7 (free-run timer 7): Address 02FCh (access:

Half-word, Word

)

(About attributes, see “

Meaning of Bit Attribute Symbols (Page No.10)

”.)

• When the timer data register is read, the count value of the free-run timer is also obtained.

• By writing to the timer data register, the timer value can be written in the free-run timer. When it is written,

make sure that the free-run timer is in the idle state (the count stop bit (TCCS.STOP= 1”)).

15

14

13

12

11

10

9

8

bit

T15

T14

T13

T12

T11

T10

T9

T8

0

0

0

0

0

0

0

0

Initial

value

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Attribute

7

6

5

4

3

2

1

0

bit

T7

T6

T5

T4

T3

T2

T1

T0

0

0

0

0

0

0

0

0

Initial

value

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Attribute