4 and, 6 to, 10 indicates an addressable area – NEC PD750008 User Manual

Page 263

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CHAPTER 11 INSTRUCTION SET

(3) Explanation of symbols used for the addressing area column

Remarks 1. MB represents an accessible memory bank.

2. For

*

2, MB = 0 regardless of the setting of MBE and MBS.

3. For

*

4 and

*

5, MB = 15 regardless of the setting of MBE and MBS.

4. Each of

*

6 to

*

10 indicates an addressable area.

*

1

MB = MBE · MBS
(MBS = 0, 1, 15)

*

2

MB = 0

*

3

MBE = 0 : MB = 0 (00H – 7FH)

MB = 15 (F80H – FFFH)

MBE = 1 : MB = MBS (MBS =0, 1, 15)

*

4

MB = 15, fmem = FB0H – FBFH,
FF0H – FFFH

*

5

MB = 15, pmem = FC0H – FFFH

*

6

addr, addr1 = 0000H – 0FFFH

*

7

addr , addr1 = (Current PC) – 15 to (Current PC) – 1

(Current PC) + 2 to (Current PC) + 16

*

8

caddr = 0000H – 0FFFH

caddr = 0000H – 0FFFH (PC

12

= 0) or

1000H – 17FFH (PC

12

= 1)

caddr = 0000H – 0FFFH (PC

12

= 0) or

1000H – 1FFFH (PC

12

= 1)

caddr = 0000H – 0FFFH (PC

13

, PC

12

= 00B) or

1000H – 1FFFH (PC

13

, PC

12

= 01B) or

2000H – 2FFFH (PC

13

, PC

12

= 10B) or

3000H – 3FFFH (PC

13

, PC

12

= 11B)

*

9

faddr = 0000H – 07FFH

*

10

taddr = 0020H – 007FH

*

11

For MkII mode only

addr1 = 0000H – 0FFFH (µPD750004)

0000H – 17FFH (µPD750006)

0000H – 1FFFH (µPD750008)

0000H – 3FFFH (µPD75P0016)

Data memory
addressing

Program memory
addressing

µPD750004

µPD750006

µPD750008

µPD75P0016

µPD750004

µPD750006

µPD750008

µPD75P0016

addr, addr1 = 0000H – 17FFH

addr, addr1 = 0000H – 1FFFH

addr, addr1 = 0000H – 3FFFH

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