Yamaha P-105B - Page 29

PIN
NO.
NAME I/O FUNCTION
PIN
NO.
NAME I/O FUNCTION
89 – Unconnected inside 133 – Unconnected inside
90 – Unconnected inside 134 – Unconnected inside
91 MD03 IO+
External memory data bus
135 PA0 IO
Multipurpose I/O port
92 MD11 IO+ 136 PA1 IO
93 MD04 IO+ 137 PA2 IO
94 MD12 IO+ 138 PA3 IO
95 MD05 IO+ 139 PA4 IO
96 MD13 IO+ 140 PA5 IO
97 MD06 IO+ 141 PA6 IO
98 MD14 IO+ 142 PA7 IO
99 MD07 IO+ 143 PB0 IO
100 MD15 IO+ 144 PB1 IO
101 VSS G Digital core ground 145 PB2 IO
102
CS50RDN/PE4/RCLK * Setting priority PE4 > 146 PB3 IO
RCLK(SDRAM) > CS50RDN
103 MA17/PASN O
External memory address
147 PB4 IO
104 MA23 O 148 PB5 IO
105 MA16 O 149 PB6 IO
106 MA15 O 150 PB7/SYI IO
107 MA14 O 151 IOVDD IOP IO power supply
108 MA13 O 152 VSS G Digital core ground
109 MA12 O 153 VDD P Digital core power supply
110 MA11 O 154
WRN/PF5/WEN O * Setting priority PF5 >
WEN(SDRAM) > WRN
111 VDD Digital core power supply 155
UBN/PF7/UDQM O * Setting priority PF7 >
UDQM(SDRAM) > UBN
112 IOVDD IO power supply 156
LBN/PF6/LBQM O * Setting priority PF6 >
LDQM(SDRAM) > LBN
113 MA10 O
External memory address
157
CS2N/PE0/KYB07 O Chip select for area 4
114 MA09 O 158
CS3N/PE1/KYB08 O Chip select for area 5
115 MA20 O 159 CS4N/PE2 O Chip select for area 6
116 MA21/PF1 O 160
CS5N/PE3/KYB09 O Chip select for area 7
117 MA22/PF2 O 161
CS51WRN/PE5/KYB122 O * For shining keyboard
118 MA19 O 162
CS52WRN/PE6/KYB13 O * For shining keyboard
119 MA18/CASH O 163
CS53WRN/PE7 O * For shining keyboard
120 MA08 O 164 PF3 O Port for output only
121 MA07 O 165 PJ5 O Key selection signal for keyboard
122 MA06 O 166 PJ4/KYB11 O Key selection signal for keyboard
123 MA05 O 167 PJ3/KYB01 O Key selection signal for keyboard
124 MA04 O 168 PJ2/KY04 O Key selection signal for keyboard
125 MA03 O 169 PJ1/KYB03 O Key selection signal for keyboard
126 MA02 O 170 PJ0/KYB02 O Key selection signal for keyboard
127 MA00 O 171 VSS G Digital core ground
128 CS1N/PG1 O Chip select for area 3 172 ECSN Is Chip select input from external CPU
129 VSS G Digital core ground 173
EWRN/PD5/KYN26 Is Write enable input from external CPU
130 ICN Is Reset 174
ERDN/PD4/KYN25 Is Read enable input from external CPU
131 VSS G Digital core ground 175 – Unconnected inside
132 – Unconnected inside 176 – Unconnected inside
P-35B
P-105B/P-105WH/P-35B/L-85WH/LP-5AWH
29