GRUNDIG Service
Xenaro – GDP 42…
3 - 13
Reset
Button
Note: For production version, the
jumper is not assembled. Instead,
assemble the zero-Ohm resistor.
XB
US
RC Reset
/
ASSEMBLED ON BOTTOM SIDE.
FLASH
t_reset=0.5s
SHORT WIRES
PWE1-
PWE0-
AD1
AD30
PWE1-
AD31
AD18
AD6
ALE
LA0
RSTP-FPGA-
AD9
AD4
XIO7
PWE0-
AD0
AD7
LA3
AD22
LHLD
XIO3
PCS0-
ACK-
LA1
LA3
AD13
RD-
SCLKR
LA0
FLASHCS0-
PCS0-
PWE3-
AD29
LA[3:0]
AD17
XIO9
LA2
LHLDA
AD27
AD16
SCLKR
AD21
XIO1
PWE2-
XIO6
RSTP-
AD10
AD2
XIO[11:1]
PWE3-
PWE2-
AD28
SRAMCS-
XIO10
AD14
LA3
AD11
RD-
AD24
LA1
AD19
LA2
AD12
LA2
AD8
ACK-
AD23
FLASHCS0-
LHLD
AD25
AD15
AD26
AD20
LA0
LHLDA
XIO8
SRST-
AD3
XIO4
AD[31:0]
XIO11
PCS0-
ALE
LA1
XIO5
AD5
AD[31:0]
SRST-
LA[3:0]
PWE3-
RD-
LHLDA
PCS0-
PWE0-
PWE1-
SCLKR
XIO[11:1]
PWE2-
ALE
FLASHCS0-
LHLD
RSTP-
ACK-
V3.3
R101
3.3K
P/N: 179030-4
100 PIN, 0.8MM PITCH
MANUFACTURER: AMP
AMP179030-4
J18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
+5V
+5V
+5V
+5V
+3.3V
+3.3V
+3.3V
+3.3V
SRST-
SPARE1
RSTP-
SPARE2
GND
GND
AD31
AD30
AD29
AD28
AD27
AD26
AD25
AD24
GND
AD23
PWE3-
AD22
GND
AD21
AD20
AD19
AD18
AD17
GND
AD16
PWE2-
AD15
GND
AD14
SCLK
AD13
GND
AD12
ACK-
AD11
GND
AD10
AD9
AD8
GND
AD7
PWE1-
AD6
GND
AD5
AD4
AD3
AD2
AD1
AD0
GND
GND
PWE0-
ALE
GND
GND
LA0
LA1
LA2
LA3
GND
GND
RD-
LHLDA
GND
GND
LHLD
PCS0-
GND
GND
SRAMCS-
XIO1
GND
GND
XIO3
XIO4
GND
GND
XIO5
XIO6
GND
GND
XIO7
XIO8
GND
GND
XIO9
XIO10
GND
GND
XIO11
R99
100K
R105
3.3K
D13
1N4148
1
2
R102
330R N/A
XJP1
SW1 N/A
SW-SPST-MOM-2P
2
1
R103
3.3K N/A
R129
0R
C132
10uF
6.3V
R100
3.3K N/A
1
2
3
4
J16
THIS CONNECTOR (XBUS) IS USED FOR SW
DEVELOPMENT, FLASH PROGRAMMING, AND
CONNECTING WITH OTHER HW DEVELOPMENT
PLATFORMS AND LOGIC ANALYZER.
Model Option resistors
R100 - R105
JUMPER SETTING
1-2 SW DEVELOPMENT (SRAM)
3-4 PRODUCTION (FLASH)
M1,3
M1,3,5
M1
M1,2,3,4,5,6
M1,3
M1
M1
M1
M1,3
M1
M1
M1,3
M1
M1
M1,3
M1
M1
M3
M7
2
Hauptplatte / Main Board – Interface
(M7)
Reference
Block Diagrams .......... 3-2
Oscillograms .............. 3-3
Connection Overview 3-5
Main Board
– M1 ............................. 3-8
– M2 ............................ 3-9
– M3 ........................... 3-10
– M4 ........................... 3-10
– M5 ........................... 3-11
– M6 ........................... 3-12
– M7 ........................... 3-13
Power Supply ............. 3-15
Keyboard Control ....... 3-17