SPC8104 S-MOS Systems, SPC8104 Datasheet - Page 18

• Manufacturer Part Number: SPC8104
• Description: VGA LCD CONTROLLER
• Manufacturer: S-MOS Systems

Frame Buffer Memory Interface
Clock Inputs
Power Supply
Data Sheet
Pin Name
MA[0:9]
MD[0:4]
MD[7:15]
MD[5:6]
RAS#
LCAS#
(LWE#)
UCAS#
(CAS#)
WE#
(UWE#)
Pin Name
CLKI
Pin Name
V
V
V
V
V
V
DS-12
DD
DD
DD
SS
SS
SS
CORE
I/O
CLKI
CORE
I/O
CLKI
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
Type Pin #
I
Type Pin #
O
I/O
I/O
O
O
O
O
Type
P
P
P
P
P
P
48, 46,
42, 40,
39, 41,
45, 47,
49, 50
74, 72,
70, 68,
66, 58,
57, 59,
61, 63,
67, 69,
71, 73
62, 60
51
56
52
53
77
Pin #
12, 33, 55, 97, 118 V
1, 22, 44, 65, 86,
108
76
11, 32, 54, 96, 117 V
21, 43, 64, 85,
107, 128
75
Description
This is the clock source input and should be connected to an external oscillator.
Description
Multiplexed row/column address bits for video display memory.
Data bits for video display memory. The output drivers of these pins are placed into a
high-impedance state when RESET is high. On the falling edge of RESET, the
values on MD[3:0] are latched into a read-only Auxiliary Register and are available to
be read as configuration inputs. Also, the values on MD[5:6] are used to configure
other various hardware options - see Section 5.8, Summary of Configuration
Options, for details. Note that there are internal pullup resistors on the inputs of
these pins except MD[5:6].
DRAM Row Address Strobe.
DRAM Column Address Strobe for low byte (LCAS#), or Write Enable Strobe for low
byte (LWE#), as determined by logic value on MD[6] during RESET (see pin
mapping table).
DRAM Column Address Strobe for high byte (UCAS#), or single Column Address
Strobe (CAS#), as determined by logic value on MD[6] during RESET (see pin
mapping table).
DRAM Write Enable Strobe (WE#), or Write Enable Strobe for high byte (UWE#), as
determined by logic value on MD[6] during RESET (see pin mapping table).
Description
V
V
V
V
DD
DD
DD
SS
SS
SS
supply for core logic.
supply for I/O pins.
supply for CLKI pin.
supply for core logic.
supply for I/O pins.
supply for CLKI pin.
412-1.0
SPC8104