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