UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 93
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UPD78F0537DGA(T)-9EV-A
Manufacturer Part Number
UPD78F0537DGA(T)-9EV-A
Description
8BIT MCU, 128K FLASH, 7KB RAM, SMD
Manufacturer
NEC
Datasheet
1.UPD78F0535GBT-UEU-A.pdf
(773 pages)
Specifications of UPD78F0537DGA(T)-9EV-A
Controller Family/series
UPD78
No. Of I/o's
55
Ram Memory Size
7KB
Cpu Speed
20MHz
No. Of Timers
8
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
128KB
Oscillator Type
External, Internal
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78K0/Kx2 Flash Memory Self Programming User’s Manual (U17516E).
4.3 Memory Bank Select Register (BANK)
Notes 1.
For details, see the RA78K0 Ver. 3.80 Assembler Package Operation User’s Manual (U17199E) and the
The memory bank select register (BANK) is used to select a memory bank to be used.
BANK can be set by an 8-bit memory manipulation instruction.
Reset signal generation clears BANK to 00H.
Caution Be sure to change the value of the BANK register in the common area (0000H to 7FFFH).
Memory Bank Number
Memory bank 0
Memory bank 1
Memory bank 2
Memory bank 3
Memory bank 4
Memory bank 5
Address: FFF3H After reset: 00H R/W
Symbol
2.
BANK
CHAPTER 4 MEMORY BANK SELECT FUNCTION (
SM+ for 78K0/Kx2, ID78K0-QB
Set the memory bank to be used by the memory bank select register (BANK) (see Figure 4-3).
If the value of the BANK register is changed in the bank area (8000H to BFFFH), an inadvertent
program loop occurs in the CPU. Therefore, never change the value of the BANK register in the
bank area.
BANK2
7
0
0
0
0
0
1
1
08000H-0BFFFH
Figure 4-3. Format of Memory Bank Select Register (BANK)
Other than above
Table 4-1. Memory Bank Address Representation
BANK1
CPU Address
6
0
0
0
1
1
0
0
Note 2
BANK0
User’s Manual U17260EJ6V0UD
5
0
0
1
0
1
0
1
Common area (32 K) + memory bank 0 (16 K)
Common area (32 K) + memory bank 1 (16 K)
Common area (32 K) + memory bank 2 (16 K)
Common area (32 K) + memory bank 3 (16 K)
Setting prohibited
Setting prohibited
08000H-0BFFFH
0C000H-0FFFFH
10000H-13FFFH
14000H-17FFFH
18000H-1BFFFH
1C000H-1FFFFH
Flash Memory Real Address
4
0
µ
PD78F0536, 78F0537, AND 78F0537D ONLY)
PD78F0536
3
0
Bank setting
BANK2
2
Common area (32 K) +
memory bank 4 (16 K)
Common area (32 K) +
memory bank 5 (16 K)
µ
08000H-0BFFFH
18000H-1BFFFH
28000H-2BFFFH
38000H-3BFFFH
48000H-4BFFFH
58000H-5BFFFH
PD78F0537, 78F0537D
Simulator and Debugger
Address Representation in
BANK1
1
BANK0
0
Note 1
93
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