GRUNDIG Service
GDP 2200
2 - 15
A1
A0
A3
A2
D1
D0
D3
D2
MDR
T1
T2
Clock
Generator
Clock
Source
Instruction Execution
Controller
Instruction Decoder
Interr upt
Controller
Instruction
Queue
Peripheral Execution Bus
Interrupt Bus
Internal Peripheral
Functions
BG
BR
External Interface
RAM Bus
Internal RAM
Internal ROM
ROM Bus
Bus Controller
Operand Address
Program Address
Program
Counter
Incrementer
ALU
Address Registers
Data Registers
A
B
Multiplier
PSW
Multiplication/Division Register
External Extension Bus
Separate Mode
40
41
42
43
44
45
46
47
48
49
50
VREF+
P86,TM9IOB
,SBI4
P90,TM8IO
A
,BIBT1,DMAREQ1
P91,TM10IO
A
,BIBT2,DMAA
CK1
P92,TM10IOB
,DMAREQ0
P93,TM10IC
,DMAA
CK0
AV
SS
V
DD
P73,SBT1,DMUX
P75,SBO1
NMI
P72,SBO0,UCAS
P71,SBI0,LCAS
,CAS
P70,SBT0,RAS
P95,AN1
P94,AN0
P85,TM9IO
A,SBT4,SCL4,SBO2
P84,TM7IO
,SBO3,SD
A
3
P83,TM4IO
,SBI3
P74,SBI1
P87,TM9IC
,SBO4,SD
A4
65
34
35
36
37
38
39
33
24
23
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
22
25
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
73
74
54
55
56
57
58
59
60
61
62
53
52
51
64
63
75
72
71
70
69
68
67
66
99
98
97
96
95
94
100
MN102HF60G
MN102HF60G
MN102H60G
MN102H60G
MN102HF60K
MN102HF60K
MN102H60K
MN102H60K
(TOP
OP VIEW)
VIEW)
D10
D9
D8
D7
D5
D4
D2
RST
PA1,IRQ1
D15
D14
D13
D12
D11
PA0,IRQ0
PA2,IRQ2
PA3,IRQ3
PA4,IRQ4,TM15IB
D3
D6
V
SS
D1
V
DD
D0
A2
V
DD
XO
V
SS
BOSC
,PB0,BIBT1,BIBT2
V
DD
A3
BSTRE,P56,TM15IA
P55,BRA
CK
CS1,P51,TM13OB
WE,WEH,P63
P60,W
A
IT
,SBT2
RE
WEL,P62
CS2,P52,TM14O
A
CS3,P53,TM14OB
P54,BREQ
(W
ORD)
A0
OSCI
OSCO
(MODE)
CS0
XI,PB1
A1
27
28
29
30
31
32
26
A17,P41
A18,P42
A19,P43
VREF-
A20,P44,AN4
A21,P45,AN5
A22,P46,AN6,STOP
A23,P47,AN7,WDOUT
P80,TM14OA
P81,TM14OB
P82,TM0IO,SBT3,SCL3,SBI2
AV
DD
A12
A13
A14
A15
A16,P40
A11
A5
A6
A7
A8
A9
A10
A4
(ADSEP)
*
*
P96,AN2
P97,AN3
* : Use 33 k
Ω
- 50 k
Ω
MN102HF
