TMP86C993XB Toshiba, TMP86C993XB Datasheet - Page 198

• Manufacturer Part Number: TMP86C993XB
• Description: EMULATION CHIP FOR TMP86F SSOP
• Manufacturer: Toshiba

Specifications of TMP86C993XB

• Accessory Type: Adapter
• For Use With/related Products: TMP86F SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.4
Access to the Flash Memory Area
Example :After sector erasure (E000H-EFFFH), the program in the RAM area writes data 3FH to address E000H.
Example :This write control program reads data from address F000H and stores it to 98H in the RAM area.
; #### Flash Memory Sector Erase Process ####
sLOOP1:
; #### Flash Memory Write Process ####
sLOOP2:
DI
LD
LDW
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
CMP
JR
LD
LD
LD
LD
LD
CMP
JR
LD
JP
LD
LD
(WDTCR2),4EH
(WDTCR1),0B101H
(FLSCR),00111000B
IX,0F555H
IY,0FAAAH
HL,0E000H
(IX),0AAH
(IY),55H
(IX),80H
(IX),0AAH
(IY),55H
(HL),30H
W,(HL)
W,(HL)
NZ,sLOOP1
(IX),0AAH
(IY),55H
(IX),0A0H
(HL),3FH
W,(HL)
W,(HL)
NZ,sLOOP2
(FLSCR),11001000B
XXXXH
A,(0F000H)
(98H),A
Page 184
: Disable interrupts (IMF←"0")
: Clear the WDT binary counter.
: Disable the WDT.
: 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, (E000H)=3FH
: Loop until the same value is read.
: Disable command sequence execution.
: Jump to the flash memory area.
: Read data from address F000H.
: Store data to address 98H.
TMP86FH92DMG