Chapter 9: Message transfers

From the previous page

 

 

 

 

 

Virtual address space

 

 

PC memory space

High

Low word

 

 

 

 

word

Byte block

Word block

 

 

 

T00-000 to 177

 

0x0000 to 0x007F

0x0000 to 0x003F

 

 

 

 

 

 

 

 

 

 

T01-000 to 177

 

0x0080 to 0x00FF

0x0040 to 0x007F

 

 

 

 

 

 

 

 

 

 

T02-000 to 177

 

0x0100 to 0x017F

0x0080 to 0x00BF

 

 

 

 

 

 

 

 

 

 

T03-000 to 177

 

0x0180 to 0x01FF

0x00C0 to 0x00FF

 

 

 

 

 

 

 

 

 

 

T04-000 to 177

 

0x0200 to 0x027F

0x0100 to 0x013F

 

 

 

 

 

 

 

 

 

 

T05-000 to 177

 

0x0280 to 0x02FF

0x0140 to 0x017F

 

 

 

 

 

 

 

 

 

 

T06-000 to 177

 

0x0300 to 0x037F

0x0180 to 0x01BF

 

 

 

 

 

 

 

 

 

 

T07-000 to 177

 

0x0380 to 0x03FF

0x01C0 to 0x01FF

 

 

 

 

 

 

 

 

 

 

T10-000 to 177

 

0x0400 to 0x047F

0x0200 to 0x023F

 

 

 

 

 

 

 

 

 

 

T11-000 to 177

 

0x0480 to 0x04FF

0x0240 to 0x027F

 

 

 

 

 

 

 

 

 

 

T12-000 to 177

 

0x0500 to 0x057F

0x0280 to 0x02BF

 

 

 

 

 

 

 

 

 

 

T13-000 to 177

 

0x0580 to 0x05FF

0x02C0 to 0x02FF

 

 

 

 

 

 

 

 

 

 

T14-000 to 177

 

0x0600 to 0x067F

0x0300 to 0x033F

 

 

 

 

 

 

 

 

 

 

T15-000 to 177

 

0x0680 to 0x06FF

0x0340 to 0x037F

 

 

 

 

 

 

 

 

 

 

T16-000 to 177

 

0x0700 to 0x077F

0x0380 to 0x03BF

 

 

 

 

 

 

 

 

 

Special I/O parameter

T17-000 to 177

0x00F0

0x0780 to 0x07FF

0x03C0 to 0x03FF

 

 

 

 

 

9

 

 

T20-000 to 177

 

0x0800 to 0x087F

0x0400 to 0x043F

 

 

 

 

 

 

 

 

T21-000 to 177

 

0x0880 to 0x08FF

0x0440 to 0x047F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T22-000 to 177

 

0x0900 to 0x097F

0x0480 to 0x04BF

 

 

 

 

 

 

 

 

 

 

T23-000 to 177

 

0x0980 to 0x09FF

0x04C0 to 0x04FF

 

 

 

 

 

 

 

 

 

 

T24-000 to 177

 

0x0A00 to 0x0A7F

0x0500 to 0x053F

 

 

 

 

 

 

 

 

 

 

T25-000 to 177

 

0x0A80 to 0x0AFF

0x0540 to 0x057F

 

 

 

 

 

 

 

 

 

 

T26-000 to 177

 

0x0B00 to 0x0B7F

0x0580 to 0x05BF

 

 

 

 

 

 

 

 

 

 

T27-000 to 177

 

0x0B80 to 0x0BFF

0x05C0 to 0x05FF

 

 

 

 

 

 

 

 

 

 

T30-000 to 177

 

0x0C00 to 0x0C7F

0x0600 to 0x063F

 

 

 

 

 

 

 

 

 

 

T31-000 to 177

 

0x0C80 to 0x0CFF

0x0640 to 0x067F

 

 

 

 

 

 

 

 

 

 

T32-000 to 177

 

0x0D00 to 0x0D7F

0x0680 to 0x06BF

 

 

 

 

 

 

 

 

 

 

T33-000 to 177

 

0x0D80 to 0x0DFF

0x06C0 to 0x06FF

 

 

 

 

 

 

 

 

 

 

T34-000 to 177

 

0x0E00 to 0x0E7F

0x0700 to 0x073F

 

 

 

 

 

 

 

 

 

 

T35-000 to 177

 

0x0E80 to 0x0EFF

0x0740 to 0x077F

 

 

 

 

 

 

 

 

 

 

T36-000 to 177

 

0x0F00 to 0x0F7F

0x0780 to 0x07BF

 

 

 

 

 

 

 

 

 

 

T37-000 to 177

 

0x0F80 to 0x0FFF

0x07C0 to 0x07FF

 

 

 

 

 

 

 

 

 

 

B0-000 to 077

 

0x0000 to 0x003F

0x0000 to 0x001F

 

 

 

 

 

 

 

 

 

 

B1-000 to 077

 

0x0040 to 0x007F

0x0020 to 0x003F

 

 

 

 

 

 

 

 

 

 

B2-000 to 077

 

0x0080 to 0x00BF

0x0040 to 0x005F

 

 

 

 

 

 

 

 

 

Option parameter

B3-000 to 077

0x00F1

0x00C0 to 0x00FF

0x0060 to 0x007F

 

 

 

 

 

 

 

 

 

 

B4-000 to 077

 

0x0100 to 0x013F

0x0080 to 0x009F

 

 

 

 

 

 

 

 

 

 

B5-000 to 077

 

0x0140 to 0x017F

0x00A0 to 0x00BF

 

 

 

 

 

 

 

 

 

 

B6-000 to 077

 

0x0180 to 0x01BF

0x00C0 to 0x00DF

 

 

 

 

 

 

 

9-12