Pioneer DV-2850S Service Manual page 71

5
No. Pin Name I/O
91 AD7 I Microcontroller address/data 7
92 A17 O Flash address 17
93 IOA0 I/O Microcontroller address 0/IO
94 DVSS – 3.3V Ground pin for internal digital circuitry
95 UWR# I Microcontroller write strobe, active low
96 URD# I Microcontroller read strobe, active low
97 DVDD18 – 1.8V power pin for internal digital circuitry
98 UP1_2 I/O Microcontroller port 1-2
99 UP1_3 I/O Microcontroller port 1-3
100 UP1_4 I/O Microcontroller port 1-4
101 UP1_5 I/O Microcontroller port 1-5
Microcontroller port 1-6
102 UP1_6 I/O
2
I C clock pin
103 UP1_7 I/O Microcontroller port 1-7
2
I C data pin
104 UP3_0 I/O Microcontroller port 3-0
8032 RS232 RXD
105 UP3_1 I/O Microcontroller port 3-1
8032 RS232 TXD
Microcontroller port 3-4
106 UP3_4 I/O
Hardwired RD232 RXD
2
I C clock pin
Microcontroller port 3-5
107 UP3_5 I/O
Hardwired RD232 TXD
2
I C data pin
108 DVDD3 – 3.3V power pin for internal digital circuitry
109 ICE I Microcontroller ICE mode enable
110 PRST# I Power on reset input, active low
111 IR I IR control signal input
Microcontroller external interrupt 0, active low
112 INT0# I/O
113 DQM0 I/O Data mask 0
114 DQS0 I/O GPIO
DRAM data 7
115 RD7 I/O
116 DVSS – 1.8V Ground pin for internal digital circuitry
117 RD6 I/O DRAM data 6
118 RD5 I/O DRAM data 5
3.3V Ground pin for internal digital circuitry
119 DVSS –
120 RD4 I/O DRAM data 4
121 RD3 I/O DRAM data 3
1.8V power pin for internal digital circuitry
122 DVDD18 –
123 RD2 I/O DRAM data 2
124 RD1 I/O DRAM data 1
125 RD0 I/O DRAM data 0
DRAM data 15
126 RD15 I/O
127 DVDD3 – 3.3V power pin for internal digital circuitry
128 RD14 I/O DRAM data 14
129 RD13 I/O DRAM data 13
130 RD12 I/O DRAM data 12
131 RD11 I/O DRAM data 11
132 RD10 I/O DRAM data 10
133 RD9 I/O DRAM data 9
134 DVSS – 3.3V Ground pin for internal digital circuitry
135 RD8 I/O DRAM data 8
136 DQS1 I/O GPIO
5
6
Pin Function No.
137 DQM1
138 RWE#
139 CAS#
140 RAS#
141 DVDD3
142 RCS#
143 BA0
144 DVSS
145 BA1
146 RA10
147 RA0
148 DVSS
149 RA1
150 RA2
151 RA3
152 DVDD18
153 NC
154 NC
155 DVDD3
156 RCLK
157 CKE
158 RA11
159 RA9
160 RA8
161 DVSS
162 RA7
163 DVSS
164 RA6
165 RA5
166 RA4
167 DVDD3
168 RD31
169 RD30
170 RD29
171 NC
172 NC
173 DVDD18
174 RD26
175 NC
176 RD25
177 RD24
178 DQM3
179 DQM2
180 NC
181 NC
182 DVDD3
183 NC
184 NC
185 NC
186 NC
187 NC
188 NC
DV-2850-S
6
7
Pin Name I/O
I/O Data mask 1
O DRAM Write enable, active low
O DRAM column address strobe, active low
O DRAM row address strobe, active low
– 3.3V power pin for internal digital circuitry
O DRAM chip select, active low
I/O DRAM bank address 0
– 1.8V Ground pin for internal digital circuitry
I/O DRAM bank address 1
I/O DRAM address 10
I/O DRAM address 0
– 3.3V Ground pin for internal digital circuitry
I/O DRAM address 1
I/O DRAM address 2
I/O DRAM address 3
1.8V power pin for internal digital circuitry
–
– –
– –
3.3V power pin for internal digital circuitry
–
I/O Dram clock
O DRAM clock enable
I/O DRAM address bit 11
I/O DRAM address 9
I/O DRAM address 8
3.3V Ground pin for internal digital circuitry
–
I/O DRAM address 7
– 1.8V Ground pin for internal digital circuitry
DRAM address 6
I/O
I/O DRAM address 5
I/O DRAM address 4
– 3.3V power pin for internal digital circuitry
GPIO
I/O
I/O GPIO
I/O GPIO
–
–
– –
– 1.8V power pin for internal digital circuitry
I/O GPIO
–
–
I/O GPIO
I/O GPIO
I/O GPIO
I/O GPIO
– –
– –
– 3.3V power pin for internal digital circuitry
– –
– –
– –
– –
– –
– –
7
8
Pin Function
71
8
A
B
C
D
E
F