UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 99

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

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

<R>
• Software example
Remark
RAMD
R_BNKA:
R_BNKN:
R_BNKRN: DS
RSAVEAX: DS
ETRC
ENTRY:
BNKC
BNKCAL:
BNKCALS:
BN3
TEST:
END
CHAPTER 4 MEMORY BANK SELECT FUNCTION (
In the software example above, multiplexed processing is not supported.
CSEG
DSEG
DS
DS
MOV
MOVW
CALL
CSEG
MOVW
MOV
XCH
MOV
CALL
MOVW
XCH
MOV
MOVW
RET
MOVW
PUSH
MOVW
RET
CSEG
MOV ⋅⋅⋅
RET
:
:
SADDR
2
1
1
R_BNKN,#BANKNUM TEST
R_BNKA,#TEST
!BNKCAL
AT
A,R_BNKN
R_BNKRN,A
!BNKCALS
A,R_BNKRN
BANK,A
AX,RSAVEAX
AX,R_BNKA
AX,RSAVEAX
AX
BANK3
2
UNIT
RSAVEAX,AX
A,BANK
RSAVEAX,AX
AX
:
:
7000H
User’s Manual U17260EJ6V0UD
; Secures RAM for specifying an address at the calling destination.
; Secures RAM for specifying a memory bank number at the calling destination.
; Secures RAM for saving a memory bank number at the calling source.
; Secures RAM for saving the AX register.
; Store the memory bank number at the calling destination in RAM.
; Stores the address at the calling destination in RAM.
; Branches to an inter-memory bank calling processing routine.
; Inter-memory bank calling processing routine
; Saves the AX register.
; Acquires the memory bank number at the calling destination.
; Changes the bank and acquires the memory bank number at the calling source.
; Saves the memory bank number at the calling source to RAM.
; Calls a subroutine to branch to the calling destination.
; Saves the AX register.
; Acquires the memory bank number at the calling source.
; Specifies the memory bank number at the calling source.
; Restores the AX register.
; Returns to the calling source.
; Specifies the address at the calling destination.
; Sets the address at the calling destination to stack.
; Restores source AX register.
; Branches to the calling destination.
;
PD78F0536, 78F0537, AND 78F0537D ONLY)
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