EM78P813

8-bit OTP Micro-controller

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* This specification is subject to change without notice.

30

2004/8/19

(V1.6)

PORT65

MUX

CM P1

ADCS1

PORT66

MUX

CM P2

ADCS2

PORT67

MUX

CM P3

ADCS3

MUX

CM PS1

CM PS0

+

-

MUX

CM PREF

CM PFLAG

CM PEN

0

1

2

P65/CM P1

P66/CM P2

P67/CM P3

MUX

1/2R

R

R

1/2R

4

CM PB3 to CM PB0

1111

1110

0000

VRSEL

MUX

V2_0

ref.

2.0V

VDD

CM PEN

VR

Fig.20

Comparator circuit

CM PEN

CM P1 to CM P3

reference

voltage

CPU clock

CM PFLAG

Setup time 10us

Compare start

Compare end

Fig.21

Comparator timing

PAGE3 Tone 1 Control Register

7

6

5

4

3

2

1

0

T17

T16

T15

T14

T13

T12

T11

T10

Bit 0~Bit 7(T10~T17) : Tone generator1 frequency

divider and power control

Please Run in Normal mode .