tmp88ch41ug TOSHIBA Semiconductor CORPORATION, tmp88ch41ug Datasheet - Page 192

• Manufacturer Part Number: tmp88ch41ug
• Description: 8 Bit Microcontroller Tlcs-870/x Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

18.4 Access to the Flash Memory Area
18. Flash Memory
Example :After chip erasure, the program in the RAM area writes data 3FH to address F000H.
; #### Flash Memory Chip erase Process ####
sLOOP1:
; #### Flash Memory Write Process ####
sLOOP2:
sLOOP3:
DI
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
CMP
JR
LD
LD
LD
LD
LD
CMP
JR
LD
JP
(FLSCR),0011_1000B
IX,04555H
IY,04AAAH
HL,0F000H
(IX),0AAH
(IY),55H
(IX),80H
(IX),0AAH
(IY),55H
(IX),10H
A,(IX)
A,(IX)
NZ,sLOOP1
(IX),0AAH
(IY),55H
(IX),0A0H
(HL),3FH
A,(HL)
A,(HL)
NZ,sLOOP2
(FLSCR),1100_1000B
sLOOP3
Page 182
: Disable interrupts (IMF← "0")
: Enable command sequence execution.
: 1st bus write cycle
: 2nd bus write cycle
: 3rd bus write cycle
: 4th bus write cycle
: 5th bus write cycle
: 6th bus write cycle
: Loop until the same value is read.
: 1st bus write cycle
: 2nd bus write cycle
: 3rd bus write cycle
: 4th bus write cycle, (F000H) = 3FH
: Loop until the same value is read.
: Disable command sequence execution.
TMP88FH41UG