11
DDX7032/7032M/712
DNX7120/7220/7320
●
SYSTEM MICROCOMPUTER: 30878MJBA24GP (X15: IC404)
Pin No.
Pin Name
I/O
Application
True Value
Table
Processing Operation Description
1
AV_SDA/TC_
SDA/E2P_SDA
I/O
Communication data between AV_SW, T/C, and
E2P
2
NC
O
NC
3
HSY
I
Hsync input: For VCOM adjustment input from X35
4
MIX_REMO
I
Remote controller data input
5
SYS_MDATA
O
Data output to AUDIO
μ
-com
6
SYS_SDATA
I
Data input from AUDIO
μ
-com
7
SYS_CLK
O
Communication clock with AUDIO
μ
-com
8
SYS_MREQ
O
Request to AUDIO
μ
-com
9
SYS_SREQ
I
Request from AUDIO
μ
-com
10
SYS_ON
O
ON/OFF control of AUDIO
μ
-com
11
X0
O
Touch panel control
12
X1
O
Touch panel control
13
Y0
O
Touch panel control
14
ACC_DET
I
ACC detection
L: ACC ON
15
BYTE
I
External data bus width switching
Connected to Vss since this is a single chip
16
CNVSS
I
Terminal for writing data in
μ
-com
“L” during the normal operation
17
XCIN
I
Sub clock input
32.768kHz
18
XCOUT
O
Sub clock output
32.768kHz
19
RESET
I
L: RESET
20
XOUT
O
Main clock output
11.0592MHz
21
VSS
-
22
XIN
I
Main clock input
11.0592MHz
23
VCC1
-
24
NMI
I
Not used
25
BU_DET
I
BU detection
L: BU ON, H: Reduced voltage
26
TV_SC_REQ
I
Communication request from TV_COM
27
TV_MC_REQ
O
Communication request to TV_COM
28
TV_SC_CON
O
Start request to TV_COM
29
TV_SC_DATA
I
DATA input from TV_COM
30
TV_CLK
O
CLK output to TV_COM
31
TV_MC_DATA
O
DATA output to TV_COM
32
PWM
O
LCD brightness control
PWM output
33
POWER_PWM
O
DC-DC_IC oscillation frequency control
381kHz or 316kHz
34
TV_JUDGE
I
Determination of TV_BOX if it is old or new
H: Old, L: New
35
INV_PWM
O
Inverter oscillation frequency control
PWM output
36
NAVI_RX
I
Navi control data input
37
NAVI_TX
O
Navi control data output
38
TXD
O
Terminal for writing data in
μ
-com
39
VCC1
-
40
RxD
I
Terminal for writing data in
μ
-com
41
VSS
-
42
SCLK
I
Terminal for writing data in
μ
-com
MICROCOMPUTER’S TERMINAL DESCRIPTION
