Philips S1D13505 Computer Monitor User Manual


 
Epson Research and Development
Page 13
Vancouver Design Center
Interfacing to the Philips MIPS PR31500/PR31700 Processor S1D13505
Issue Date: 01/02/05 X23A-G-001-07
4.3 Memory Mapping and Aliasing
The PR31500/PR31700 uses a portion of the PC Card Attribute and IO space to access the
S1D13505. The S1D13505 responds to both PC Card Attribute and IO bus accesses, thus
freeing the programmer from having to set the PR31500/PR31700 Memory Configuration
Register 3 bit CARD1IOEN (or CARD2IOEN if slot 2 is used). As a result, the
PR31500/PR31700 sees the S1D13505 on its PC Card slot as described in the table below.
Table 4-2: PR31500/PR31700 to PC Card Slots Address Remapping for Direct Connection
S1D13505 Uses PC Card Slot # Philips Address Size Function
1
0800 0000h 16M byte Card 1 IO or Attribute
0900 0000h 8M byte
S1D13505 registers,
aliased 4 times at 2M byte intervals
0980 0000h 8M byte
S1D13505 display buffer,
aliased 4 times at 2M byte intervals
0A00 0000h 32M byte Card 1 IO or Attribute
6400 0000h 64M byte Card 1 Memory
2
0C00 0000h 16M byte Card 2 IO or Attribute
0D00 0000h 8M byte
S1D13505 registers,
aliased 4 times at 2M byte intervals
0D80 0000h 8M byte
S1D13505 display buffer,
aliased 4 times at 2M byte intervals
0E00 0000h 32M byte Card 2 IO or Attribute
6800 0000h 64M byte Card 2 Memory