Philco PH-919 Service Manual page 12

PIN Symbol
55 APLLVDD3
56 ALE
57 IOOE#
58 IOWR#
59 IOCS#
60 DVSS
61 UP1_2
62 UP1_3
63 UP1_4
64 UP1_5
65 UP1_6
66 DVDD3
67 UP1_7
68 UP3_0
69 UP3_1
70 INT0#
71 IR
72 DVDD2
73 UP3_4
74 UP3_5
75 UWR#
76 URD#
77 DVSS
78 RD7
79 RD6
80 RD5
81 RD4
82 DVDD2
83 RD3
84 RD2
85 RD1
86 RD0
87 RWE#
88 CAS#
89 RAS#
90 RCS#
91 BA0
92 DVSS
93 RD15
94 RD14
95 RD13
96 RD12
97 DVDD3
98 RD11
99 RD10
100 RD9
101 RD8
102 DVSS
103 CLK
104 CLE
105 RA11
106 RA9
107 RA8
108 DMVDD3
109 DMVSS
110 RA7
111 DV33
112 RA6
113 RA5
10
Type
Power 3.3V power
Inout,pull up Microcontroller address latch enable
Inout Flash output enable,active low /GPIO13
Inout Flash write enable,active low /GPIO17
Inout,pull up Flash chip select,active low /GPIO18
Ground Ground
Inout,pull up Microcontroller port 1-2
Inout,pull up Microcontroller port 1-3
Inout,pull up Microcontroller port 1-4
Inout,pull up Microcontroller port 1-5
Inout,pull up Microcontroller port 1-6
Power 3.3V power
Inout,pull up Microcontroller port 1-7
Inout,pull up Microcontroller port 3-0
Inout,pull up Microcontroller port 3-1
Inout,pull up Microcontroller interrupt 0,active low
Input IR control signal input
Power 2.5V power
Inout Microcontroller port 3-4
Inout Microcontroller port 3-5
Inout,pull up Microcontroller write strobe,active low
Inout,pull up Microcontroller read strobe,active low
Ground Ground
Inout DRAM data 7
Inout DRAM data 6
Inout DRAM data 5
Inout DRAM data 4
Power 2.5V power
Inout DRAM data 3
Inout DRAM data 2
Inout DRAM data 1
Inout DRAM data 0
Output DRAM write enable,active low
Output DRAM column address strobe,active low
Output DRAM row address strobe,active low
Output DRAM chip select,active low
Output DRAM bank address 0
Ground Ground
Inout,pull up/down DRAM data 15
Inout,pull up/down DRAM data 14
Inout,pull up/down DRAM data 13
Inout,pull up/down DRAM data 12
Power Power3.3V
Inout,pull up/down DRAM data 11
Inout,pull up/down DRAM data 10
Inout,pull up/down DRAM data 9
Inout,pull up/down DRAM data 8
Ground Ground
Output DRAM clock
Output DRAM clock enable
Output DRAM address bit 11 or audio serial data 3 (channel 7/8)
Output DRAM address 9
Output DRAM address 8
Power 3.3V power
Ground Ground
Output DRAM address 7
Power 3.3V power
Output DRAM address 6
Output DRAM address 5
Description