74
PU01 / QU01 : HD64F3687H
Pin PORT
SIGNAL NAME
I/O Function Description
1 PB6_AN6 AD2 I Analog KEY information
2 PB7_AN7 AD1 I Model select
3 AVcc AVCC I Analog power supply
4 X2 X2 O Sub clock output
5 X1 X1 I Sub clock input 32.758kHz
6 VCL VC1 I Internal step-down power supply
7 /RES RES I Reset pin
8 TEST TEST I Test Pin Connect to GND
9 Vss GND I GND
10 OSC2 OSC2 O Main clock output
11 OSC1 OSC1 I Main clock input 8MHz
12 Vcc VCC I +3.3V Power supply
13 P50_/WKP0 VOLA I Rotary_encoder VOLUME A External trigger(Active H)
14 P51_/WKP1 VOLB I Rotary_encoder VOLUME B External trigger(Active H)
15 P34 T_CE_R O
Rch TONE AMP Control Analog
SW(NJU7312) CS
Negative logic circuits (Logic
reversal in the exterior)
16 P35 T_CE_L O
Lch TONE AMP Control Analog
SW(NJU7312) CS
Negative logic circuits (Logic
reversal in the exterior)
17 P36 T_DI O
TONE AMP Control Analog SW(NJU7312)
Data
Negative logic circuits (Logic
reversal in the exterior)
18 P37 T_CL O
TONE AMP Control Analog SW(NJU7312)
Clock
Negative logic circuits (Logic
reversal in the exterior)
19 P52_/WKP2 SEL_A I Rotary_encoder INPUT SELECT A External trigger (Active H)
20 P53_/WKP3 SEL_B I Rotary_encoder INPUT SELECT B External trigger (Active H)
21 P54_/WKP4 PO_MUTE O PRE_OUT MUTE Active H(MUTE ON)
22
P55_/WKP5_/
ADTRG
AD_INT I Analog KEY information, Change detection External trigger (Active H)
23 P10_TMOW MUTE_VOL O Electronic volume (WM8816) MUTE Control Active H (MUTE ON)
24 P11_PWM DCT2 O DC trigger out 2 H/L=POW_ON/POW_OFF
25 P12 DCT1 O DC trigger out 1 H/L=POW_ON/POW_OFF
26 P56_SDA SDA I/O EEPROM (AT24C04) Serial-Data I2C_DATA
27 P57_SCL SCL O EEPROM (AT24C04) Serial-Clock I2C_CLOCK
28 P74_TMRIV VOL_CSL O Lch Electronic volume (WM8816) CS Active H
29 P75_TMCIV VOL_CSR O Rch Electronic volume (WM8816) CS Active H
30 P76_TMOV HP_MUTE I HEADPHONE OUT MUTE Active H(MUTE ON)
31 P24 NC1 I
32 P63_FTIOD0 DB7 I/O LCD-Controler(NJU6469) Data-Bus
33 P62_FTIOC0 DB6 I/O LCD-Controler(NJU6469) Data-Bus
34 P61_FTIOB0 DB5 I/O LCD-Controler(NJU6469) Data-Bus
35 /NMI ICE4 I ICE connect pin ICE brake control
36 P60_FTIOA0 NC2 I
37 P64_FTIOA1 RC_IN I IR capture input Capture input (Active L)
38 P65_FTIOB1 VOL_CLK O Electronic volume (WM8816) Clock
39 P66_FTIOC1 VOL_DAT I/O Electronic volume (WM8816) Data
40 P67_FTIOD1 NC3 I
41 P85 ICE1 - ICE connect pin
42 P86 ICE2 - ICE connect pin
43 P87 ICE3 - ICE connect pin
44 P20_SCK3 S_OE O
LED+INPUT SELECTOR control, Serial-
Interface OE
Active H
45 P21_RXD RXD I SYSTEM Control bus input
46 P22_TXD TXD O SYSTEM Control bus output
47 P23 BI I STEREO/Bi-AMP Change H/L = STEREO/Bi-AMP
48 P70_SCK3-2 S_CLK O
LED+INPUT SELECTOR Control Serial-
Interface Clock
49 P71_RXD-2 S_CE O
LED+INPUT SELECTOR Control Serial-
Interface CS
Active L
50 P72_TXD-2 S_DATA O
LED+INPUT SELECTOR Control Serial-
Interface Data
51 P14_/IRQ0 NC4 I
52 P15_/IRQ1_TMIB1 P_DOWN I Power down detect External trigger(Active L)
53 P16_/IRQ2 PROT_2 I
Power supply error detect (processes of
detection:Volume=-∞,MUTE)
Active L (Abnormal
detection)
54 P17_/IRQ3_TRGV PROT_1 I
Over-current detection (processes of
detection:Volume=-∞, MUTE)
Active H (Over-current
detection)
55 P33 E O LCD-Controler(NJU6469) Enabling control Active H
56 P32 R/W O LCD-Controler(NJU6469) Read/Write Control H/L = Read/Write
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