Microprocessor And Ic Data - Marantz DV12 Service Manual

12. MICROPROCESSOR AND IC DATA

QF01:TMP87CM71F
Pin No. Port Name
1 N.C.
2 LT1
3 N.C.
4 N.C.
5 N.C.
6 XRESET
7 XREADY
8 STB_CONT
9 TEST
10 N.C.
11 N.C.
12 CPU_RST
13 XIN
14 XOUT
15 GND
16 N.C.
17 IR_IN
18 N.C.
19 SSCK
20 SSO
21 SSI
22 VFD_CLK
23 VFD_CE
24 VFD_SDA
25 VFD_RST
26 KEY_IN_0
27 KEY_IN_1
28 KEY_IN_2
29 KEY_OUT_0
30 KEY_OUT_1
31 KEY_OUT_2
32 KEY_OUT_3
33 +5STB
34 TV_SYS_1
35 TV_SYS_2
36 I/P_1
37 I/P_2
38 V_MUTE
39 VF_SW
40 S_MUTE
41 192K_96K
42 FL_OFF_LED
43 STB_LED
44 N.C.
45 N.C.
46 N.C.
47 N.C.
48 N.C.
49 N.C.
50 N.C.
51 N.C.
52 N.C.
53 N.C.
54 N.C.
55 N.C.
56 N.C.
57 N.C.
58 MODEL
59 VERSION0
60 VERSION1
61 VERSION2
62 N.C.
63 N.C.
64 N.C.
65 N.C.
66 VKK
67 ROM_SDA.
68 ROM_SCL
69 N.C.
70 N.C.
71 N.C.
72 N.C.
73 N.C.
74 N.C.
75 N.C.
76 N.C.
77 N.C.
78 N.C.
79 N.C.
80 N.C.
I/O FUNCTION
I
I Communication response signal input from Mecha. unit
I
I
I
O Reset signal for Mecha unit
O Communication handshake line for Mecha unit
O Stand-by Control
I GND
I
I
I Reset signal input
I 8MHz Oscillator connecting
O 8MHz Oscillator connecting
GND
I
I Remote signal input
I
O Serial clock output for Mecha unit
I Serial data input from Mecha unit
O Serial data output for Mecha unit
O Serial clock output for LC75710NE
O Chip enable output for LC75710NE
O Serial data output for LC75710NE
O Reset signal for LC75710NE
I Key scan input
I Key scan input
I Key scan input
O Key scan output
O Key scan output
O Key scan output
O Key scan output
Power supply
O TV System control signal for Mecha unit
O TV System control signal for Mecha unit
O Interlace/Progressive control signal for Mecha unit
O Interlace/Progressive control signal for Mecha unit
O Video mute signal
O Video Filter control signal
O Audio mute control signal
O Not use
O FL OFF LED control
O Standby LED control
I Model setting
I Destination setting
I Destination setting
I Destination setting
GND
I/O Serial data input/output for EEPROM
O Serial clock output for EEPROM
L: Busy, H: Ready
L: Reset
L: Ready
L: Standby
L: Reset
L: Reset
L: Mute
H: Progressive
L: Mute
H: FL OFF
H: Standby
L: DV-12S1
39