Dell GCR-8481B Service Manual page 21

Pin No. Symbol
114 VDIO3
115 OEXTAL
116 EXTAL
117 VDIO4
118 RSTZ
119 XPDI
120 DASP
121 HCS1
122 HCS0
123 HA2
124 HA0
125 HA1
126 VDC6
127 XS16
128 HINT
129 XHAC
130 REDY
131 VDIO4
132 VDC4
133 VSC4
134 XHRD
135 XHWR
136 HDRQ
137 XHRS
138 VDIO5
139 HDBF
140 HDB0
141 HDBE
142 HDB1
143 VSIO5
144 VSIO6
145 HDBD
146 HDB2
147 HDBC
148 HDB3
149 VDIO6
150 VDIO7
151 HDBB
152 HDB4
I/O
Digital Power Supply (3.3V)
O 1,0 Crystal Oscillating Circuit Output for the Master Clock
I Crystal Oscillating Circuit Intput for the Master Clock
Digital Power Supply GND
I System Reset,"L" is reset
I/O Z,0 Passed Diagnostics Signal, Open Drain Output, Negative Logic
I/O Z,0 Drive Active/Slave Present Signal, Open Drain Output, Negative Logic
I Chip Select Negative Signal from Host
I Chip Select Negative Signal from Host
I Host Address (MSB)
I Host Address (LSB)
I Host Address
Digital Power Supply (2.5V)
O Z,0 Host 16-bit I/O Port Select Signal, Open Drain Output, Negative Logic
I/O 1,Z,0 Host Interrupt Demand Signal, Positive Logic
I DMA Acknowledge Signal from Host, Negative Logic
O Z, 0 Host I/O Channel Ready Signal, Open Drain Output, Negative Logic
Digital Power Supply (3.3V)
Digital Power Supply (2.5V)
Digital GND
I Data Read Strobe Signal from Host
I Data Write Strobe Signal from Host
O 1, Z, 0 DMA Request Signal to Host, Positive Logic
I Chip Reset Signal from Host, Negative Logic
Digital Power Supply (3.3V)
I/O 1,Z,0 Host Data Bus (MSB)
I/O 1,Z,0 Host Data Bus (LSB)
I/O 1,Z,0 Host Data Bus
I/O 1,Z,0 Host Data Bus
Digital Power Supply GND
Digital Power Supply GND
I/O 1,Z,0 Host Data Bus
I/O 1,Z,0 Host Data Bus
I/O 1,Z,0 Host Data Bus
I/O 1,Z,0 Host Data Bus
Digital Power Supply (3.3V)
Digital Power Supply (3.3V)
I/O 1,Z,0 Host Data Bus
I/O 1,Z,0 Host Data Bus
COMMENT
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