Epson Research and Development
Page 15
Vancouver Design Center
S5U13505B00C Rev. 1.0 ISA Bus Evaluation Board User Manual
S1D13505
Issue Date: 01/02/05
X23A-G-004-05
6.3 DRAM Support
The S1D13505 supports 256K x 16 as well as 1M x 16 FPM/EDO-DRAM in symmetrical and
asymmetrical formats.
The S5U13505B00C board supports a 5.0V 1M x 16 symmetrical EDO-DRAM (42-pin SOJ
package). This provides a 2M byte display buffer.
6.4 Decode Logic
This board utilizes the MIPS/ISA Interface of the S1D13505 (see the S1D13505 Hardware
Functional Specification, document number X23A-A-001-xx).
All required decode logic is provided through a 22V10 PAL (U4, socketed).
6.5 Clock Input Support
The S1D13505 supports up to a 40.0Mhz input clock frequency. A 40.0MHz oscillator (U2,
socketed) is provided on the S5U13505 board as the clock (CLKI) source.
6.6 Monochrome LCD Panel Support
The S1D13505 supports 4 and 8-bit, dual and single, monochrome passive LCD panels. All
necessary signals are provided on the 40-pin ribbon cable header J6. The interface signals on the
cable are alternated with grounds to reduce crosstalk and noise.
Refer to Table 3-1 “LCD Signal Connector (J6)” on page 9 for connection information.
6.7 Color Passive LCD Panel Support
The S1D13505 directly supports 4, 8 and 16-bit, dual and single, color passive LCD panels. All the
necessary signals are provided on the 40-pin ribbon cable header J6. The interface signals on the
cable are alternated with grounds to reduce crosstalk and noise.
Refer to Table 3-1 “LCD Signal Connector (J6)” on page 9 for connection information.