RESET_
NT_
WSA/FSA
SCKA
SDA
GPIO0
GPI4
GPI5/MUTE_
D(19-0)
A(15-0)
ROM RD_ WR_
XTI XTO
GPIO1
SCKIN
WSB
SCKS
SDB
SDC
SDO
ZR38500
(X08)IC47
DAC
DAC
DAC
L
R
LS
RS
C
SW
ICE(JTAG)
HOST PORT (SPI)
Clock oscillator
11,209/12,888MHz
33MHz
EPROM
32kx8
(200ns)
SRAM
32kx8
(35ns)
CS_
OE_
CS_
OE_
WR_
D7-0
A14-0
SRAM
32kx8
(35ns)
CS_
OE_
WR_
D7-0
A14-0
D7-0
A14-0
RD_
D7-D0
A14-A0
4
4
RD_
WR_
D19-D12
A14-A0
RD_
WR_
D11-D4
A14-A0
D7
Pin
No.
Pin Name
I/O
Description
56,57
DIGSEL1
O
TC74HC153 digital input selector
58
TYPESEL
I
Model distinction
H:KC-Z1
L:KR-V990D
59
I
Not used
60
RESET
I
Sub u-com reset
61-67
I
Not used
68
VDD
Power supply (+5V)
69-70
X2,X1
4.19MHz ceramics
71
IC(VPP)
GND
72
XT2
O
Not used
73
XT1
I
Not used (GND)
74
AVDD
Not used
75
AVREF0
Not used
76-77
I
Not used
78
DSP2AK
I
DSP IC2 (TC83015JE):(X08:IC42) acknowledge
79
DSP1RST
O
DSP IC1 (TC83015JE):(X08:IC41) reset
80
DSP1RDY
O
DSP IC1 (TC83015JE):(X08 ICI41) ready
3. DSP (AC-3) : ZR38500-36 (X08 : IC47)
3-1. System block diagram
CIRCUIT DESCRIPTION
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299