Yamaha GA 011589 service manual YSS910-S XV988A00 DSP6 Digital Signal Processor

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YSS910-S(XV988A00) DSP6 (Digital Signal Processor)							DM: IC8
PIN	NAME	I/O	FUNCTION	PIN	NAME	I/O	FUNCTION
NO.				NO.
1	Vdd		Power supply (3.3 V)	89	Vss		Ground
2	Vss		Ground	90	DB13	I/O
3	XI	I	System master clock input (60 MHz or 30 MHz)	91	DB14	I/O
4	XO	O	System master clock output (High or 30 MHz)	92	DB15	I/O
5	Vdd		Power supply (5 V)	93	DB16	I/O
6	/SYNCI	I	Sync. signal input	94	DB17	I/O	Parallel data bus
7	/SYNCO	O	Sync. signal output	95	DB18	I/O
8	Vdd		Power supply (5 V)	96	DB19	I/O
9	CKI	I	System clock input (30 MHz)	97	DB20	I/O
10	CKO	O	System clock output (30 MHz)	98	DB21	I/O
11	CKSEL	I	System master clock select (0: 60 MHz, 1: 30 MHz)	99	DB22	I/O
12	Vss		Ground	100	Vss		Ground
13	MCKS	I	Serial I/O master clock input (128 x Fs)	101	Vdd		Power supply (3.3 V)
14	/SSYNC	I	Serial I/O Sync. signal output	102	DB23	I/O
15	/IC	I	Initial clear	103	DB24	I/O
16	/TEST	I	Test mode setting (0: Test, 1: Normal)	104	DB25	I/O
17	BTYP	I	Data bus type select (0: 8 bit, 1: 16 bit)	105	DB26	I/O
18	/IRQ	O	IRQ output	106	DB27	I/O	Parallel data bus
19	TRIG	I/O	Trigger signal input/output	107	DB28	I/O
20	Vdd		Power supply (5 V)	108	DB29	I/O
21	Vss		Ground	109	DB30	I/O
22	/CS	I	chip select signal input	110	DB31	I/O
23	/WR	I	Write signal input	111	TIMO/DBOB	I/O	Timing signal output/ Parallel data bus output/ input
24	/RD	I	Read signal input	112	Vss		Ground
25	CA7	I/O		113	Vdd		Power supply (5 V)
26	CA6	I/O		114	DA00	I/O
27	CA5	I/O	Address bus of internal register	115	DA01	I/O
28	CA4	I/O		116	DA02	I/O
29	CA3	I/O		117	DA03	I/O	Memory data bus
30	CA2	I/O		118	DA04	I/O
31	CA1	I/O	Ground	119	DA05	I/O
32	Vss			120	DA06	I/O
33	Vdd	I/O	Power supply (3.3 V)	121	DA07	I/O
34	CD15			122	Vss		Ground
35	CD14	I/O		123	DA08	I/O
36	CD13	I/O		124	DA09	I/O
37	CD12	I/O		125	DA10	I/O
38	CD11	I/O	Data bus of internal register	126	DA11	I/O	Memory data bus
39	CD10	I/O		127	DA12	I/O
40	CD09	I/O		128	DA13	I/O
41	CD08	I/O		129	DA14	I/O
42	CD07	I/O		130	DA15	I/O
43	CD06	I/O	Ground	131	Vss		Ground
44	Vss			132	Vdd		Power supply (3.3 V)
45	Vdd		Power supply (3.3 V)	133	(n.c)		Not used
46	Vdd	I/O	Power supply (5 V)	134	Vdd	I/O	Power supply (5 V)
47	CD05			135	DA16
48	CD04	I/O		136	DA17	I/O
49	CD03	I/O	Data bus of internal register	137	DA18	I/O
50	CD02	I/O		138	DA19	I/O	Memory data bus
51	CD01	I/O		139	DA20	I/O
52	CD00	I/O	WAIT output	140	DA21	I/O
53	/WAIT	O		141	DA22	I/O
54	Vss	I	Ground	142	DA23	I/O
55	SI0			143	Vss		Ground
56	SI1	I		144	DA24	I/O
57	SI2	I		145	DA25	I/O
58	SI3	I	Serial data input	146	DA26	I/O
59	SI4	I		147	DA27	I/O	Memory data bus
60	SI5	I		148	DA28	I/O
61	SI6	I		149	DA29	I/O
62	SI7	I	Ground	150	DA30	I/O
63	Vss			151	DA31	I/O
64	Vdd	O	Power supply (5 V)	152	Vdd		Power supply (5 V)
65	SO0			153	Vss		Ground
66	SO1	O		154	A00	O
67	SO2	O		155	A01	O
68	SO3	O	Serial data output	156	A02	O
69	SO4	O		157	A03	O
70	SO5	O		158	A04	O	Memory address (SRAM, PSRAM, DRAM)
71	SO6	O		159	A05	O
72	SO7	O	Ground	160	A06	O
73	Vss	I/O		161	A07	O
74	DB00			162	A08	O
75	DB01	I/O		163	A09	O
76	DB02	I/O		164	Vss		Ground
77	DB03	I/O		165	Vdd		Power supply (3.3 V)
78	DB04	I/O		166	A10	O	Memory address (SRAM, PSRAM, DRAM)
79	DB05	I/O		167	A11	O
			Parallel data bus
80	DB06	I/O		168	A12	O
81	DB07	I/O		169	A13	O	Memory address (SRAM, PSRAM)
82	DB08	I/O		170	A14	O
83	DB09	I/O		171	A15/RAS	O	Memory address (SRAM, PSRAM), /RAS (DRAM)
84	DB10	I/O		172	A16/CAS	O	Memory address (SRAM, PSRAM), /CAS (DRAM)
85	DB11	I/O		173	A17/CE	O	Memory address (SRAM), /CE (PSRAM)
86	DB12	I/O	Power supply (5 V)	174	/WE	O	Memory write enable signal
87	Vdd			175	/OE	O	Memory output enable signal
88	Vdd		Power supply (3.3 V)	176	Vdd		Power supply (5 V)

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