Samsung SF3000, Service Manual

Page: 35 / 114

Pin No. KS32C6500 ATLAS used pin Pin Description
90 A9 A9
91 A10 A10
92 GND5 GND5
93 A11 A11
94 A12 A12
95 A13 A13
96 A14 A14
97 A15 A15
98 A16 A16
99 A17 A17
100 A18 A18
101 A19 A19
102 A20 A20
103 A21 A21
104 VDD4 VDD4
105 _RCS0 _RCS0 PROGRAM ROM CHIP SELECT
106 _RCS1 NOT-USED FONT ROM CHIP SELECT
107 _RCS2 _RCS2 SRAM CHIP SELECT
108 _RAS0 _RAS0 DRAM ROW ADDRESS STROBE (DEFAULT)
109 _RAS1 NOT-USED DRAM ROW ADDRESS STROBE (OPTION)
110 _CAS0 _CAS0 DRAM LOWER COLUMN ADDRESS STROBE
111 _CAS1 _CAS1 DRAM UPPER COLUMN ADDRESS STROBE
112 _OE _OE MEMORY OUTPUT ENABLE
113 _WE _WE MEMORY WRITE ENABLE
114 GND6 GND6
115 _WBE0 _WBE0 WRITE BYTE ENABLE
116 _WBE1 NOT-USED WRITE BYTE ENABLE
117 _ECS0 _ECS0 MODEM CHIP SELECT
118 _ECS1 _ECS1 DSP CHIP SELECT
119 _ECS2 _ECS2 SDIP4 CHIP SELECT
120 _ECS3 NOT-USED
121 GOP0 GOP0 LIU TXD
122 GIP0 GIP0 LIU RXD
123 GOP1 GOP1 OPE TXD
124 GIP1 GIP1 OPE RXD
125 TEST1 TEST1 NORMAL MODE: GND
126 TEST2 TEST2 DEBUG MODE: VCC
127 CHIP5 CHIP5 HEAD CHECK
128 CLKSEL CLKSEL MASTER CLK SELECT: H
129 _RESET _RESET SYSTEM RESET
130 GND7 GND7
131 MCLK MCLK MASTER CLK (30MHZ)
132 GND8 GND8
133 GOP5 GOP5 RX CONTROL
134 VDD5 VDD5
135 GIP2 GIP2 _MODEM INTERRUPT REQUEST
5-8 Samsung Electronics
Circuit Description