NEC PD754144 User Manual page 240

4-bit single-chip microcontrollers
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(3) Symbols in addressing area field
.
*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,
*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
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.
240
CHAPTER 11 INSTRUCTION SET
FF0H to FFFH
User's Manual U10676EJ3V0UM
Data memory
addressing
Program memory
addressing

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