NEC PD17071GB-012 Technical data

UPD17071GB-012 PRELIMINARY DATA SHEET

MOS INTEGRATED CIRCUIT

μPD17071GB-012

4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY

SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV

DESCRIPTION

The μPD17071GB-012 is a CMOS microcontroller with an on-chip PLL frequency synthesizer for receiving international FM and AM and Japanese TV broadcasting.

In addition, because it includes a prescaler (230 MHz MAX.), IF counter, and LCD controller/driver, it constitutes a high-performance, multi-function FM, AM, or TV tuner on a single chip.

Housed in a 56-pin QFP and driven by two dry cells at a low voltage (VDD = 1.8 to 3.6 V), the μPD17071GB-012 is ideal for creating a compact portable clock radio and radio cassette recorder.

FEATURES

•Preset memory

Three bands: FM, AM, and Japanese TV (1 to 12 channels)

10 stations for each band, totaling 30 stations

•Last channel memory

One station for each band, totaling 3 stations

•Tuning function

•Manual seek/auto seek

•Auto store memory

•Preset memory call

•LCD controller/driver

(1/4 duty, 1/2 bias, 3.1-V driven, frame frequency: 62.5 Hz)

•

•

•

•

Watch function

12-hour or 24-hour indication Alarm function

Outputs alarm sound at set time every day Sleep timer function

Turns off radio after set time

(Time can be set in a range of 30 to 120 minutes in units of 30 minutes.)

Low-voltage operation

VDD = 1.8 to 3.6 V

ORDERING INFORMATION

Part Number

Package

μPD17071GB-012-1A7 56-pin plastic QFP (10 × 10 mm, 0.65 mm pitch)

The information in this document is subject to change without notice.

Document No. U12320EJ1V0DS00 (1st edition) Date Published July 1997 N

Printed in Japan

© 19957

μPD17071GB-012

FUNCTIONAL OUTLINE

Receive frequency, channel space, reference frequency, intermediate frequency, station detection mode

						(1/2)
Region	Band	Receive Frequency	Channel Space	Reference	Intermediate	Station
				Frequency	Frequency	Detection Mode
Japan	FM	76.0 to 90.0 MHz	100 kHz	25 kHz	–10.71 MHz	IF only
						IF and SD
		76.0 to 108.0 MHz	100 kHz	25 kHz	–10.71 MHz	IF only
						IF and SD
	AM	522 to 1629 kHz	9 kHz	3 kHz	450 kHz	IF only
						IF and SD
					459 kHz	IF only
						IF and SD
					10.71 MHz	IF only
						IF and SD
	TV	1 to 12 ch	—	25 kHz	–10.71 MHz	IF only
						IF and SD
U.S.A.	FM	87.5 to 107.9 MHz	200 kHz	25 kHz	10.71 MHz	IF only
						IF and SD
			100 kHz	25 kHz	10.71 MHz	IF only
						IF and SD
	AM	530 to 1710 kHz	10 kHz	5 kHz	450 kHz	IF only
						IF and SD
					460 kHz	IF only
						IF and SD
					10.71 MHz	IF only
						IF and SD
China	FM	87.0 to 108.0 MHz	100 kHz	25 kHz	10.71 MHz	IF only
						IF and SD
			50 kHz	25 kHz	10.71 MHz	IF only
						IF and SD
	AM	522 to 1611 kHz	9 kHz	3 kHz	450 kHz	IF only
						IF and SD
					10.71 MHz	IF only
						IF and SD
Europe 1	FM	87.5 to 108.0 MHz	50 kHz	25 kHz	10.71 MHz	IF only
						IF and SD
	AM	530 to 1620 kHz	10 kHz	5 kHz	450 kHz	IF only
					459 kHz	IF only
					10.71 MHz	IF only
		522 to 1629 kHz	9 kHz	3 kHz	450 kHz	IF only
						IF and SD
					459 kHz	IF only
						IF and SD
					10.71 MHz	IF only
						IF and SD
Europe 2	FM	87.5 to 108.0 MHz	50 kHz	25 kHz	10.71 MHz	IF only
						IF and SD
	AM	530 to 1620 kHz	10 kHz	5 kHz	450 kHz	IF only
					459 kHz	IF only
					10.71 MHz	IF only
		522 to 1629 kHz	9 kHz	3 kHz	450 kHz	IF only
						IF and SD
					459 kHz	IF only
						IF and SD
					10.71 MHz	IF only
						IF and SD

Remark The initial values in the preset memory differ between “Europe 1” and “Europe 2”.

2

μPD17071GB-012

(2/2)

	Setting of Pin Input			Setting of Initialization Diode Switch
9k/10k	AREA0	AREA1	Japan Wide	CHINA BAND	IFSEL0	IFSEL1	SD_IF
SD			100k/200k
Don’t care	L	L	L	0	Don’t care	Don’t care	0
Don’t care	L	L	L	0	Don’t care	Don’t care	1
Don’t care	L	L	H	0	Don’t care	Don’t care	0
Don’t care	L	L	H	0	Don’t care	Don’t care	1
Don’t care	L	L	Don’t care	0	0	0	0
Don’t care	L	L	Don’t care	0	0	0	1
Don’t care	L	L	Don’t care	0	1	0	0
Don’t care	L	L	Don’t care	0	1	0	1
Don’t care	L	L	Don’t care	0	0	1	0
Don’t care	L	L	Don’t care	0	0	1	1
Don’t care	L	L	Don’t care	0	Don’t care	Don’t care	0
Don’t care	L	L	Don’t care	0	Don’t care	Don’t care	1
Don’t care	L	H	L	0	Don’t care	Don’t care	0
Don’t care	L	H	L	0	Don’t care	Don’t care	1
Don’t care	L	H	H	0	Don’t care	Don’t care	0
Don’t care	L	H	H	0	Don’t care	Don’t care	1
Don’t care	L	H	Don’t care	0	0	0	0
Don’t care	L	H	Don’t care	0	0	0	1
Don’t care	L	H	Don’t care	0	1	0	0
Don’t care	L	H	Don’t care	0	1	0	1
Don’t care	L	H	Don’t care	0	0	1	0
Don’t care	L	H	Don’t care	0	0	1	1
Don’t care	Don’t care	Don’t care	L	1	Don’t care	Don’t care	0
Don’t care	Don’t care	Don’t care	L	1	Don’t care	Don’t care	1
Don’t care	Don’t care	Don’t care	H	1	Don’t care	Don’t care	0
Don’t care	Don’t care	Don’t care	H	1	Don’t care	Don’t care	1
Don’t care	Don’t care	Don’t care	Don’t care	1	0	0	0
Don’t care	Don’t care	Don’t care	Don’t care	1	0	0	1
Don’t care	Don’t care	Don’t care	Don’t care	1	0	1	0
Don’t care	Don’t care	Don’t care	Don’t care	1	0	1	1
Don’t care	H	L	Don’t care	0	Don’t care	Don’t care	0
Don’t care	H	L	Don’t care	0	Don’t care	Don’t care	1
L	H	L	Don’t care	0	0	0	0
L	H	L	Don’t care	0	1	0	0
L	H	L	Don’t care	0	0	1	0
H	H	L	Don’t care	0	0	0	0
Don’t care	H	L	Don’t care	0	0	0	1
H	H	L	Don’t care	0	1	0	0
Don’t care	H	L	Don’t care	0	1	0	1
H	H	L	Don’t care	0	0	1	0
Don’t care	H	L	Don’t care	0	0	1	1
Don’t care	H	H	Don’t care	0	Don’t care	Don’t care	0
Don’t care	H	H	Don’t care	0	Don’t care	Don’t care	1
L	H	H	Don’t care	0	0	0	0
L	H	H	Don’t care	0	1	0	0
L	H	H	Don’t care	0	0	1	0
H	H	H	Don’t care	0	0	0	0
Don’t care	H	H	Don’t care	0	0	0	1
H	H	H	Don’t care	0	1	0	0
Don’t care	H	H	Don’t care	0	1	0	1
H	H	H	Don’t care	0	0	1	0
Don’t care	H	H	Don’t care	0	0	1	1

Remarks 1. H: High-level input, L: Low-level input

2. 0: Open, 1: Short

3

μPD17071GB-012

INITIAL VALUE OF PRESET MEMORY

The contents of the preset memory on first power application differ depending on the destination region, as follows:

Destination	Band						Preset Memory
			Last	M1	M2	M3	M4	M5	M6	M7	M8	M9	M10
Japan	FM	(MHz)	77.5	77.5	80.0	82.5	85.0	87.5	76.0	90.0	76.0	76.0	76.0
	FM wide	(MHz)	76.0	76.0	90.0	98.0	106.0	108.0	76.0	90.0	76.0	76.0	76.0
	AM	(kHz)	603	603	810	999	1440	1620	522	522	522	522	522
	TV	(ch)	1 ch	1 ch	3 ch	4 ch	8 ch	12 ch	1 ch	1 ch	1 ch	1 ch	1 ch
U.S.A.	FM100 k	(MHz)	87.5	87.5	90.0	98.0	106.0	108.0	87.5	87.5	87.5	87.5	87.5
	FM200 k	(MHz)	87.5	87.5	90.1	98.1	106.1	107.9	87.5	87.5	87.5	87.5	87.5
	AM	(kHz)	530	530	600	1000	1200	1440	1710	530	530	530	530
China	FM	(MHz)	87.0	87.0	87.0	87.0	87.0	87.0	87.0	87.0	87.0	87.0	87.0
	AM	(kHz)	522	522	522	522	522	522	522	522	522	522	522
Europe 1	FM	(MHz)	87.5	87.5	90.0	98.0	106.0	108.0	87.5	87.5	87.5	87.5	87.5
	AM9 k	(kHz)	522	522	603	999	1440	1602	522	522	522	522	522
	AM10 k	(kHz)	530	530	600	1000	1400	1610	530	530	530	530	530
Europe 2	FM	(MHz)	87.5	87.5	90.1	98.1	106.1	108.0	87.5	87.5	87.5	87.5	87.5
	AM9 k	(kHz)	522	522	603	999	1440	1602	522	522	522	522	522
	AM10 k	(kHz)	530	530	600	1000	1400	1610	530	530	530	530	530

Remark The initial values in the preset memory differ between “Europe 1” and “Europe 2”.

4

			μPD17071GB-012
	Tuning Function
	(1) Manual tuning
	Type		Description
	Manual up		Increments or decrements frequency one step each time the corresponding key is pressed.
	Manual down
	(2) Auto tuning
	Type		Description
	Seek up		Searches station in up or down direction and, when station has been found, holds frequency of station.
	Seek down

(3)Preset memory

Stores 10 stations for each band (FM, AM, and TV) by using 10 buttons, totaling 30 stations.

(4)Preset memory call

Receives the frequency written to the preset memory.

(5)Auto store memory

Searches all the frequencies in the received band, and automatically writes the frequencies of stations to the preset memory.

(6)Last channel memory

Stores the frequency of the station received last in each of the three bands (FM, AM, and TV), totaling three stations.

5

μPD17071GB-012

WATCH FUNCTION

(1)12-hour (with “AM” and “PM” indication) or 24-hour indication

The time indication mode is automatically selected according to the selected destination region.

(2)Time on power application

On power application, the time is set to “00:00” (midnight) and counting is started.

TIMER FUNCTION

(1)Alarm function

Outputs an alarm sound at set time every day.

(2)Sleep timer

Automatically turns off radio after 30 to 120 minutes (the time can be set in units of 30 minutes).

OTHERS

(1)Outputs beep sound to confirm valid momentary key input.

(2)Watch/frequency (mode) indication selection

(3)Mute control output

(4)Key lock function

6

μPD17071GB-012

PIN CONFIGURATION (Top View)

56-pin plastic QFP (10 × 10 mm, 0.65-mm pitch)

μPD17071GB-012-1A7

CLKENA (P0B3)

JapanWide/100 k/200 k (P0B2)

AREA1 (P0B1)

AREA0 (P0B0)

BEEP

NC

CE

LCD14

LCD13

LCD12

LCD11

LCD10

LCD9

LCD8

	56	55	54	53	52	51	50	49	48	47	46	45	44	43
MUTE (P1C0)	1													42	LCD7
BAND1 (P0A0)	2													41	LCD6
BAND2 (P0A1)	3													40	LCD5
KS1 (P0A2)	4													39	LCD4
KS2 (P0A3)	5													38	LCD3
KS3 (P1B0)	6													37	LCD2
KS4 (P1B1)	7													36	LCD1
KS5 (P1B2)	8													35	LCD0
KS6 (P1B3)	9													34	COM3
K0 (P1A0)	10													33	COM2
K1 (P1A1)	11													32	COM1
K2 (P1A2)	12													31	COM0
K3 (P1A3)	13													30	REGLCD1
KEYLOCK (P0C0)	14													29	CAPLCD1
	15	16	17	18	19	20	21	22	23	24	25	26	27	28

STEREO (P0C1)

9 k/10 k/SD (P0D2)

FMIFC/AMIFC (P0D3)

GND

EO

VCOL

VCOH

REG0

VDD

XOUT

XIN

REG1

REGLCD0

CAPLCD0

Remark ( ): Pins for μPD17071GB-XXX-1A7

7

			μPD17071GB-012
			TABLE OF CONTENTS
1.	PIN FUNCTION ....................................................................................................................................			9
2. CONFIGURATION OF KEY MATRIX ................................................................................................				15
	2.1	Layout of Initialization Diode Key Matrix .............................................................................		15
	2.2	Layout of Momentary Key Matrix ...........................................................................................		15
	2.3	Connection of Key Matrix .......................................................................................................		16
	2.4	Description of Key Matrix .......................................................................................................		17
		2.4.1	Initialization diode matrix ............................................................................................................	17
		2.4.2	Momentary key .............................................................................................................................	20
	2.5	Alarm Function .........................................................................................................................		28
	2.6	Key Lock Function ...................................................................................................................		29
3.	LCD DISPLAY ....................................................................................................................................			30
	3.1	LCD Panel ..................................................................................................................................		30
	3.2	Font ............................................................................................................................................		30
	3.3	LCD Pattern ...............................................................................................................................		30
	3.4	LCD Pin Assignment ................................................................................................................		31
	3.5	Display Description .................................................................................................................		33
	3.6	Display Example .......................................................................................................................		34
4. MUTE OUTPUT TIMING CHART ......................................................................................................				36
	4.1	Manual up/down (operates by pressing key and releasing within 0.5 sec) ....................		36
	4.2	Auto up/down (operates by holding down key for 0.5 sec or longer) .............................		36
	4.3	Calling Preset Memory ............................................................................................................		37
	4.4	Band Selection .........................................................................................................................		37
	4.5	CE Pin ........................................................................................................................................		37
		4.5.1 High level to low level .................................................................................................................		37
		4.5.2 Low level to high level .................................................................................................................		37
	4.6	Sleep Timer ...............................................................................................................................		38
5.	ELECTRICAL SPECIFICATIONS (PRELIMINARY) .........................................................................			39
6.	PACKAGE ...........................................................................................................................................			42

8

μPD17071GB-012

1. PIN FUNCTION

Pin No.

Symbol

Pin Name

Description

I/O Form

1

MUTE

Mute output

Outputs a mute control signal.

CMOS

Outputs a high level in the following cases:

push-pull

• When radio is turned ON/OFF

output

• When the frequency band is changed

• During manual tuning

• During auto tuning

• When the preset memory is called

• In power-off state

2

BAND1

Band select

These pins output band select signals.

CMOS

3

BAND2

signal output

The output of each band is as follows:

push-pull

output

Pin

BAND1

BAND2

Selected band

AM

0

0

FM

1

0

TV (1 to 3 ch)

TV (4 to 12 ch)

1

1

(0: Low level, 1: High level)

4

KS1

Key source

Key source output pins of a key matrix

CMOS

|

|

output

push-pull

9

KS6

output

10

K0

Key return signal

These pins input the key return signals of a key matrix. They are

Input

|

|

input

connected to an internal pull-down resistor.

13

K3

14

KEYLOCK

Key lock signal

This pin inputs a key lock signal.

Input

input

The signal input to this pin is used to lock or unlock a momentary key.

Input a signal to this pin as follows:

• High level: To lock the momentary key.

All momentary keys are invalid while the keys are locked.

• Low level: To unlock the keys.

Note, however, that a high level or low level of less than 32 ms is

invalid.

15

STEREO

Stereo signal

This pin inputs a stereo signal.

Input

input

Reception of stereo broadcasting is identified by the signal input to

this pin.

Input a low level to this pin while stereo broadcasting is being

received.

9

μPD17071GB-012

Pin No.

Symbol

Pin Name

Description

I/O Form

16

9 k/10 k

AM setting input/

This pin inputs an SD (Station Detector) signal.

Input

/SD

SD signal input

When “Europe 1” or “Europe 2” is selected as the destination region,

this pin can be also used to input setting of a channel space in an

AM band.

(1) Setting of channel space in AM band for “Europe 1” and

“Europe 2” (9 k/10k)

This setting is valid only when “Europe 1” or “Europe 2” is selected

as the destination region.

The setting is read only on power application (power-ON reset), or

when the signal input to the CE pin (pin 50) goes high (CE reset);

otherwise, it is ignored.

Input a signal to this pin as follows:

• High level: Channel space 9 kHz

• Low level: Channel space 10 kHz

Note that the setting of this pin is invalid when initialization diode

switch SD_IF = 1, and the channel space is 9 kHz.

(2) Input of SD signal (SD)

When a station has been detected this is identified by the signal

input to this pin and the frequency counter when initialization diode

switch SD_IF = 1.

Input a high level to this pin when a station is detected.

However, a signal input for less than 32 ms is invalid.

17

FMIFC

FM/AM

This pin inputs an intermediate frequency (IF) in an FM or AM band.

Input

/AMIFC

intermediate

The signal input to this pin is used to identify a station.

frequency input

When initialization diode switch SD_IF = 1, however, the signal input to

this pin and the signal input to the SD pin (pin 16) are used to identify

a station.

The range of the input frequency in which detection of a station is

identified is as follows:

Band

Input frequency range <1>

Input frequency range <2>

FM

10.7 MHz ± 20 kHz

AM

450 kHz ± 1 kHz

459/460 kHz ± 1 kHz

TV

10.7 MHz ± 20 kHz

The conditions of input frequency ranges <1> and <2> vary as follows

depending on the setting of initialization diodes IFSEL1 and IFSEL2.

IFSEL1

IFSEL2

Selected frequency range

0

0

Input frequency range <1>

1

0

Input frequency range <2>

0

1

Input frequency range <1>

(0: Open, 1: Short)

18

GND

Ground

Ground pin

10

μPD17071GB-012

Pin No.	Symbol	Pin Name		Description					I/O Form
19	EO	Error out	This pin outputs PLL (Phase Locked Loop) errors.						CMOS
			It outputs the result of comparison between the frequency input to the						3-state
			VCOH (pin 21) or VCOL (pin 20) and a set frequency.						output
			• Input frequency > Set frequency: High level
			• Input frequency < Set frequency: Low level
			• Input frequency = Set frequency: Floating
			Connect this pin to a varactor diode via an external LPF (lowpass
			filter).
20	VCOL	AM local	This pin inputs local oscillation output (VCO output) in an AM band.						Input
		oscillation input	The signal that can be input to this pin is as follows:
			Selected intermediate	Frequency range			Minimum amplitude
			frequency	(MHz)			(Vp-p)
			10.71 MHz	5 to 50			0.2
			Other than 10.71 MHz	0.3 to 8			0.2
			Because an internal AC amplifier is provided, cut the DC component
			of the input signal with a capacitor.
21	VCOH	FM local	This pin inputs local oscillation output (VCO output) in an FM and TV						Input
		oscillation input	band. The signal that can be input to this pin is as follows:
			Frequency range (MHz)			Minimum amplitude (Vp-p)
			4 to 230				0.2
			Because an internal AC amplifier is provided, cut the DC component
			of the input signal with a capacitor.
22	REG0	Power supply pin	This is a voltage regulator pin for PLL.						—
			Connect this pin to GND via a 0.1-μF capacitor.
			It outputs a low level when the radio is off.

REG0

0.1μF

23	VDD	Power supply pin	This is a power supply pin.	—
			It supplies a voltage of VDD = 1.8 to 3.6 V (TA = –20 to +70 °C) to
			operate all the functions.
			Do not apply a voltage higher than that applied to the VDD pin to any
			pin other than the VDD pin.
24	XOUT	Crystal resonator	These pins are used to connect a crystal resonator for system clock	CMOS
			oscillation.	push-pull
			Connect a 75-kHz crystal resonator across these pins.
25	XIN			—
			The accuracy of the watch is affected only by the oscillation
			frequency of the crystal resonator.

11

									μPD17071GB-012
	Pin No.	Symbol	Pin Name		Description				I/O Form
26		REG1	Power supply pin	This pin is a voltage regulator pin for oscillation circuit.					—
				Connect this pin to GND via a 0.1-μF capacitor.
					REG1
								0.1μF

27

REGLCD0

LCD driving

• REGLCD1 and REGLCD0

—

28

CAPLCD0

power supply

These pins supply the LCD driving voltage.

29

CAPLCD1

pins

• CAPLCD1 and CAPLCD0

30

REGLCD1

Connect a capacitor for a doubler circuit across these pins to create

an LCD driving voltage.

Connect the capacitor as shown below to create the doubler circuit.

C1 = C2 = 0.1 μF

C1

C3 = 0.01 μF

REGLCD1

CAPLCD1

CAPLCD0

C3

REGLCD0

C2

Caution The value of the LCD drive voltage changes if the values

of C1, C2, and C3 are changed because of the configuration

of the doubler circuit.

31

COM0

LCD common

These pins output common signals to an LCD panel.

CMOS

|

|

signal output

They output 60 dots on the LCD panel by creating a matrix with

push-pull

34

COM3

LCD0 through LCD14 pins (pins 35 through 49).

output

35

LCD0

LCD segment

These pins outputs segment signals to an LCD panel.

CMOS

|

|

signal output

They display 60 dots on the LCD panel by creating a matrix with

push-pull

49

LCD14

COM0 through COM3 pins (pins 31 through 34).

output

50

CE

Chip enable

This input pins selects radio operation as follows:

Input

• High level

Turns ON the radio.

• Low level

Turns OFF the radio.

Note, however, that a high or low level of less than 200 μs is not

accepted.

51

NC

No connection

No connection. Externally pull down this pin.

—

12

μPD17071GB-012

Pin No.	Symbol	Pin Name			Description				I/O Form
52	BEEP	BEEP/ALARM		This pin outputs a key-ON confirmation sound (beep output) and					CMOS
		output	alarm sound.						push-pull
									output
				(1) Beep output
				A pulse of 1.5 kHz is output for about 40 ms in the following cases:
				• When a valid key is input
				• While time is adjusted up or down in high-speed mode
				• During seek up/down
				(2) Alarm sound output
				When the time reaches the alarm time set, a 3 kHz pulse is
				intermittently output approximately every 64 ms, five times after 1
				second.
				The alarm sound is output for 10 minutes from the start of output,
				or until it is canceled.
53	AREA0	Destination		These pins input setting for the destination region.					Input
54	AREA1	region setting	The setting of these pins is read only on application of VDD (power-
		input	ON reset) or when the signal input to the CE pin goes high (CE
				reset); otherwise, it is ignored.
				Input a signal to these pins as follows:
				AREA0		AREA1	Destination region
				0		0	Japan
				0		1	U.S.A.
				1		0	Europe 1
				1		1	Europe 2
				(0: Low level, 1: High level)
				When initialization diode switch CHINA_BAND = 1, however, the
				setting is invalid, and the destination region is China.

13

μPD17071GB-012

Pin No.	Symbol	Pin Name		Description	I/O Form
55	Japan Wide/	FM setting input	This pin inputs an FM receive frequency band and setting of a channel		Input
	100 k/200 k		space. The setting differs depending on the destination region.
			The setting is read only on application of VDD (power-ON reset) or when
			the CE pin (pin 50) goes high (CE reset); otherwise, it is ignored.
			(1)	When the destination region is Japan (Japan Wide)
				Sets an FM receive frequency band.
				Input as follows:
				• High-level input: 76.0 to 108.0 MHz
				• Low-level input: 76.0 to 90.0 MHz
			(2)	When the destination region is the U.S.A. (100 k/200 k)
				Sets the channel space of the FM band.
				Input as follows:
				• High-level input: 100-kHz step
				• Low-level input: 200-kHz step
			(3)	When the destination region is China (100 k/200 k)
				Sets the channel space of the FM band.
				Input as follows:
				• High-level input: 50-kHz step
				• Low-level input: 100-kHz step
56	CLKENA	Watch function	This pin inputs the setting for whether the watch function is used or not.		Input
		selection input	The setting is read only on application of VDD (power-ON reset) or
			when the CE pin (pin 50) goes high (CE reset); otherwise, it is ignored.
			Input as follows:
			• High-level input: Watch function used.
			• Low-level input: Watch function not used.

14

μPD17071GB-012

2. CONFIGURATION OF KEY MATRIX

2.1 Layout of Initialization Diode Key Matrix

	Input Pin
	(Pin No.)	K0 (10)	K1 (11)	K2 (12)	K3 (13)
	Output Pin
	(Pin No.)
	KS1 (4)	—	CHINA_BAND	TV_ENA	STOPSEL
	KS2 (5)	SD_IF	MEMSEL	IFSEL1	IFSEL2
	Remark —: Not set

2.2 Layout of Momentary Key Matrix

	Input Pin
	(Pin No.)	K0 (10)	K1 (11)	K2 (12)	K3 (13)
	Output Pin
	(Pin No.)
	KS3 (6)	SLEEP	CHECK	STOP	BAND
	KS4 (7)	AUTO STORE	M4	M5	+5
	KS5 (8)	MEMORY/AUTO STORE	M1/MEMORY UP	M2	M3
	KS6 (9)	MODE	UP	DOWN	ALARM

15