KDC-CMP21V
6
Pin No.
Pin Name
I/O
Description / Processing Operation
18
20TXD0
I/O
Serial data signal output terminal (for decoder)
19
20RXD0
I
Serial data signal input terminal (for decoder)
20
20SCLK0
O
Serial data clock output terminal (for decoder)
21
DSPTXD1
O
Serial data signal output terminal (for DSP)
22
DSPRXD1
I
Serial data signal input terminal (for DSP)
23
DSPSCLK1
O
Serial data clock output terminal (for DSP)
24
AM0
I
Select for ROM mode (H : NORMAL, L : External ROM mode)
25
DVCC
-
BU3.3V
26
X2
O
X’tal 16MHz
27
DVSS
-
GND
28
X1
I
X’tal 16MHz
29
AM1
I
Fixed H
30
RESET
I
Reset input terminal (L : RESET, H : NORMAL)
31~34
NC
O
NC
35
DSPSTB
O
Data strobe signal output terminal (for DSP)
36
DSPA0
O
Command, parameter select signal (for DSP) (H : Parameter, L : Command)
37
DSPRST
O
Reset control output terminal (for DSP)
38
DSPINT
I
Interrupt signal input terminal (for DSP) (H : Interrupt)
39
/DAC RESET
O
Reset signal output terminal (for DSP) (L : RESET, H : NORMAL)
40
SEARCH
O
Search condition output terminal (H : Search, L : NORMAL)
41
LOE/LIM_SW
I
SLT SW detect input terminal (H : Inside)
42~45
NC
O
NC
46
PONE5
O
+5V power supply control (for video) (H : POWER ON)
47
PONE2.5
O
+2.5V power supply control (for video) (H : POWER ON)
48~60
NC
O
NC
61
/DAC PD
O
DAC RESET (L : RESET, H : NORMAL)
62
DVSS
-
GND
63
NMI
I
Request for non maskable interrupt signal input terminal
64
DVCC
-
+VCC
65
DAC MUTE
O
DAC MUTE control terminal (H : MUTE, L : MUTE OFF)
66
DAC PON
O
Audio power supply (for DXM6550) (H : Power ON)
67
PONA5
O
+5V Audio power supply (for DXM6550) (H : Power ON)
68
ESRST
O
Reset signal output terminal (for ES3890) (L : RESET, H : NORMAL)
69
VMUTE
O
VIDEO MUTE control terminal (H : MUTE, L : MUTE OFF)
70
NC
O
NC
71
SELINT
O
Video/Audio select output terminal (H : NORMAL, L : Interrupt)
72
ASEL0
O
Audio signal output select terminal 0 (00 : STEREO, 01 : Lch)
73
ASEL1
O
Audio signal output select terminal 0 (10 : Rch, 11 : Not function)
74
NT/PAL
O
NTSC/PAL selector (L : NTSC, H : PAL)
75
DATASEL
O
20F/ES3890 output select (H : 20F, L : ES3890)
76,77
NC
O
NC
78
NC (BOOT)
I
Flash memory writing terminal (L : Writing, H : NORMAL)
MICROCOMPUTER’S TERMINAL DESCRIPTION
