UPD6P9 datasheet(23/45 Pages) RENESAS

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µPD6P9

Data Sheet U15144EJ1V1DS

Output from the REM pin is as follows, in accordance with the values set to bit 9 (CARY) of MOD1 and the timer

output enable flag (t9), and the value of the timer block’s 9-bit down counter (t0 to t8).

Table 4-2. REM Pin Output

MOD1 Bit 9 (CARY)

Timer Output Enable Flag

9-Bit Down Counter

REM Pin

(Timer Block t9)

(Timer Block t0 to t8)

——

Low-level output

—0

Other than 0

Carrier outputNote

High-level output

Note Input values in the range of 001H to 1FFH to MOD0 and MOD1.

Caution MOD0 and MOD1 must be set while the REM pin is low level (t9 = 0 or t0 to t8 = 0).

Table 4-3. Example of Carrier Frequency Settings (fX = 4 MHz)

Setting Value

tH (

µs)

0.25

1.0

2.5

5.0

8.25

8.75

9.0

9.125

13.25

15.0

25.0

32.0

MOD1

01H

07H

13H

27H

41H

45H

47H

48H

69H

77H

C7H

FFH

MOD0

01H

0BH

13H

27H

41H

85H

89H

8BH

8CH

91H

94H

D5H

77H

C7H

FFH

tL (

µs)

0.25

1.5

2.5

5.0

8.25

16.75

17.25

17.5

17.625

18.25

18.625

26.75

15.0

25.0

32.0

T (

µs)

0.5

2.5

5.0

16.5

26.0

26.25

26.375

27.25

27.75

40.0

30.0

50.0

64.0

fC (kHz)

2,000

400

200

100

60.6

38.5

38.10

37.9

36.7

36.0

33.3

15.6

Duty

1/2

2/5

1/2

1/3

1/2

Carrier signal

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