NEC PD754244 Network Card User Manual


 
CHAPTER 11 INSTRUCTION SET
240 User’s Manual U10676EJ3V0UM
*1 MB = MBE MBS
(MBS = 0, 4, 15)
*2 MB = 0
*3 MBE = 0: MB = 0 (000H to 07FH)
MB = 15 (F80H to FFFH)
MBE = 1: MB = MBS (MBS = 0, 4, 15)
*4 MB = 15, fmem = FB0H to FBFH,
FF0H to FFFH
*5 MB = 15, pmem = FC0H to FFFH
*6 addr = 0000H to 0FFFH
*7 addr, addr1 = (Current PC) – 15 to (Current PC) –1
(Current PC) + 2 to (Current PC) +16
*8 caddr = 0000H to 0FFFH
*9 taddr = 000H to 07FFH
*10 taddr = 0020H to 007FH
*11 addr1 = 0000H to 0FFFH
(3) Symbols in addressing area field
.
Program memory
addressing
Data memory
addressing
Remarks 1. MB indicates a memory bank that can be accessed.
2. In *2, MB = 0 regardless of MBE and MBS.
3. In *4 and *5, MB = 15 regardless of MBE and MBS.
4. *6 to *11 indicate areas that can be addressed.