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TC0660 FCM
???

the FCM seems to be responsible for various miscellaneous functions. CPU address mapping, communication between the CPU and FDP, generating CPU interrupts, address buffering for the ESP's RAM, etc.

Pinout

1	GND
2	D19	CPU data (16-bit)
3	D18
4	D17
5	D16
6	A19	CPU address high
7	A18
8	A17
9	A16
10	GND
11	A15
12	A7	CPU address low
13	A6
14	A5
15	A4
16	A3
17	A2
18	A1
19	A0
20	VCC
21
22
23
24
25
26
27
28
29
30	GND
31
32
33
34
35
36
37
38	VCC
39
40	VCC

41	GND
42
43
44
45
46
47
48	otis.e
49	otis.bclk
50	GND
51	otis.ser1
52	esp.ser0
53	otis.ser2
54	esp.ser1
55	otis.ser3
56	esp.ser2
57	esp.ser3
58	dac.data
59	GND
60	VCC
61
62	A0	ESP RAM data/addr latch
63	D9
64	A1
65	D10
66	A2
67	D11
68	A3
69	D12
70	GND
71	A4
72	D13
73	A5
74	D14
75	A6
76	D15
77	A7
78	D16
79	esp.gate
80	VCC

81	GND
82
83
84	fdp.29	CPU address to FDP?
85	fdp.28
86	fdp.26
87	fdp.25
88	fdp.24
89	fdp.23
90	GND
91	fdp.22	CPU address to FDP?
92	fdp.21
93	fdp.20
94	fdp.19
95	fdp.18
96	fdp.17
97	fda.27	FDA something
98	fda.28
99	fda.26
100	VCC
101
102	ic14.cs	CPU work RAM chip selects
103	ic15.cs
104	ic16.cs
105	ic17.cs
106	fio.118 (chip select?)
107	cpu.dsack0
108	cpu.dsack1
109	ic64.9
110	GND
111	fdp.16
112	fdp.14
113	fdp.13
114	fdp.12
115	cpu.ipl2
116	cpu.ipl1
117	cpu.ipl0
118
119	cart.C04
120	VCC

121	GND
122	otis.e
123	otis.serlr
124
125	cpu.avec
126	pal2.22 (interrupt ack)
127	cart.A90
128	cart.C04
129
130	GND
131	30mhz clock in
132	VCC
133	cpu.reset
134	cpu.siz0
135	cpu.siz1
136	cpu.rw
137	cpu.ds
138	cpu.as
139	GND
140	VCC
141	pal1.22 (addr map C-F)
142	pal1.20 (addr map 6)
143	pal1.19 (addr map 4)
144	D31	CPU data (16-bit)
145	D30
146	D29
147	D28
148	D27
149	D26
150	GND
151	D25
152	D24
153	D23
154	D22
155	D21
156	D20
157
158
159
160	VCC

TC0660 FCM???

Pinout

TC0660 FCM
???