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CL-GD6420 Datasheet(PDF) 7 Page - Cirrus Logic

Part # CL-GD6420
Description  High-Resolution LCD VGA Controller for Notebook Computers
PDF  146 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CL-GD6420 Datasheet(HTML) 7 Page - Cirrus Logic

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CL-GD6420
Notebook VGA Controller
July 1993
7
DATA BOOK
2.
Detailed Pin Description (cont.)
Name
Pin No.
Type
Description
CLKPW*
140
O
CLOCK CHIP POWER CONTROL: Active low, can be
used to control external transistor logic connected to clock
synthesizer power pins. This signal is active in Suspend
Mode.
RAS*[1:0]
142:141
O
VIDEO MEMORY RAS*: RAS*[0] to AA Bus, RAS*[1] to AB
CAS*[1:0]
144:143
Bus.
CAS*[1:0]
143:144
O
VIDEO MEMORY CAS*: CAS*[0] to AA Bus, CAS[*1] to AB
Bus.
M0D[7]/MID[2]
119
I/O
VIDEO MEMORY DATA PIN: Planes 0 and 1, Bit 7.
MONITOR ID BIT 2. The state of this pin is sampled at reset
and latched into ER9C[7].
M0D[6]/MID[1]
120
I/O
VIDEO MEMORY DATA PIN: Planes 0 and 1, Bit 6.
MONITOR ID BIT 1. The state of this pin is sampled at reset
and latched into ER9C[6].
M0D[5]/MID[0]
121
I/O
VIDEO MEMORY DATA PIN: Planes 0 and 1, Bit 5.
MONITOR ID BIT 0. The state of this pin is sampled at reset
and latched into ER9C[5].
M0D[4:0]
126:122
I/O
VIDEO MEMORY DATA PINS: Planes 0 and 1, Bits 4:0.
M2D[7]/PD7
3
I/O
VIDEO MEMORY DATA PINS: Planes 2 and 3, Bit 7.
PULL DOWN # 7: The state of this pin is sampled at reset
and latched into ER99[7].
M2D[6:0]
2, 1,
I/O
VIDEO MEMORY DATA PINS: Planes 2 and 3, Bits 6:0.
160:156
FRWE*
118
O
FRAME-ACCELERATOR WRITE ENABLE*.
FRCAS *
117
O
FRAME-ACCELERATOR CAS*.
FRRAS*
116
O
FRAME-ACCELERATOR RAS*.
FROE*
115
O
FRAME-ACCELERATOR OE*.
FRAD3/SW1
114
I/O
FRAME-ACCELERATOR MULTIPLEXED ADDRESS/DA-
TA[3] multiplexed with Switch 1.
FRAD2/SW2
113
I/O
FRAME-ACCELERATOR MULTIPLEXED ADDRESS/DA-
TA[2] multiplexed with Switch 2.



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