Yamaha HTR-6280 Service Manual page 90

RX-V1065/HTR-6280/AX-V1065
Memory Interface
Pin
Function Name I/O
No.
121 ADDR19
122 ADDR18
123 ADDR17
124 ADDR16 O Address bus for async/Sync access
125 ADDR15
126 ADDR14
127 ADDR13
135 ADDR12
136 ADDR11
137 ADDR10
138 ADDR9
O Address bus for async/Sync access
139 ADDR8
140 ADDR7
141 ADDR6
142 ADDR5
146 ADDR4
147 ADDR3
O Address bus for async/Sync access
148 ADDR2
149 ADDR1
98 DATA15
99 DATA14
100 DATA13
101 DATA12
I/O Daea bus for async access
102 DATA11
103 DATA10
104 DATA9
105 DATA8
108 DATA7
109 DATA6 I/O Daea bus for async access
110 DATA5
112 DATA4
113 DATA3
114 DATA2 I/O Daea bus for async access
115 DATA1
116 DATA0
150 ABE1
O
151 ABE0
163 BR I
119 BG O Bus grant
120 BGH O Bus grant hang
Asynchronous memory control
Pin
Function Name I/O
No.
158 AMS3
159 AMS2
O Banks select
160 AMS1
161 AMS0
162 ARDY I
154 AOE O Output enable
153 ARE O Read enable
152 AWE O Write enable
90
Detail of Function
Byte enables/Data masks for async/
Sync access
Bus request (This pin should be pulled
HIGH if not used.)
Detail of Function
hardware ready control (This pin
should be pulled HIGH if not used.)
Synchronous memory control
Pin
Function Name I/O
No.
167 SRAS O Row address strobe
166 SCAS O Column address strobe
165 SWE O Write enable
173 SCKE O Clock enable
169 CLKOUT O Clock output
164 SA10 O A10 pin
172 SMS O Bank select
Timers
Pin
Function Name I/O
No.
79 TMR0 I/O Timer0
78 PPI_FS1 I/O Timer1/PPI frame sync1
77 PPI_FS2 I/O Timer2/PPI frame sync2
PPI port
Pin
Function Name I/O
No.
22 PP10
23 PP11
I/O PPI3-0
24 PP12
26 PP13
21 PPI_CLK I PPI clock/External timer reference
Port F: GPOI/Parallel peripheral interface port/SPI/Timers
Pin
Function Name I/O
No.
51 N_SPISS I/O GPIO/SPI slave select input
GPIO/SPI slave select enable 1/
50 PF1 I/O
Timer alternate clock input
49 PF2 I/O GPIO/SPI slave select enable 2
GPIO/SPI slave select enable 3/
48 PPI_PS3 I/O
PPI frame sync 3
GPIO/SPI slave select enable 4/
47 PF4 I/O
PPI 15
GPIO/SPI slave select enable 5/
46 PF5 I/O
PPI 14
GPIO/SPI slave select enable 6/
38 PF6 I/O
PPI 13
GPIO/SPI slave select enable 7/
37 PF7 I/O
PPI 12
36 PF8 I/O GPIO/PPI 11
35 PF9 I/O GPIO/PPI 10
34 PF10 I/O GPIO/PPI 9
33 PF11 I/O GPIO/PPI 8
32 PPI7 I/O GPIO/PPI 7
29 PPI6 I/O GPIO/PPI 6
28 PPI5 I/O GPIO/PPI 5
27 PPI4 I/O GPIO/PPI 4
Detail of Function
Detail of Function
Detail of Function
Detail of Function