| Address | Port Size | Signal | Description |
11xx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx | 32 | kseg2 1023MB | Kernel cached tasks |
10xx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx | 32 | kuseg 1024MB |
01xx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx | 32 | kuseg 1024MB |
001x:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx | N/A | Inaccessible 512MB |
0001:1111:11xx:xxxx:xxxx:xxxx:xxxx:xxxx | 8 | Kernel Boot and I/O |
0001:1111:1100:0xxx:xxxx:xxxx:xxxx:xxxx | 8 | /ROMSEL | Boot ROM up to 512K |
0001:1111:1111:1xxx:xxxx:xxxx:xxxx:xxxx | 8 |
0001:1111:1111:1111:1111:1111:1111:xxxx | 8 | /REGSEL | Onboard I/O port registers |
0001:1111:1111:1111:1111:1111:1110:xxxx | 8 | /SCCSEL | Philips 2681+ DUART |
0001:10xx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx | 8 | /IO8SEL | 8-bit I/O space |
0001:01xx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx | 16 | /IO16SEL | 16-bit I/O space |
0001:00xx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx | 32 | 32-bit I/O space |
0000:11xx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx | 32 | 64MB Remap Window |
0000:10xx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx | 32 | |
0000:01xx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx | 32 | |
0000:00xx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx | 32 | /RAMSEL | SRAM 64MB starting at 0x00000000 |