tmp89fh42l TOSHIBA Semiconductor CORPORATION, tmp89fh42l Datasheet - Page 347
tmp89fh42l
Manufacturer Part Number
tmp89fh42l
Description
8 Bit Microcontroller Tlcs-870/c1 Series
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TMP89FH42L.pdf
(428 pages)
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RA006
Note 1: In using a write instruction in the xxx bus write cycle, make sure that you use a write instruction of more
Note 2: If a read of the flash memory (toggle operation) is to be performed after a write instruction is generated
; End process
sRAMopEnd
sLOOP1:
; Convert address (steps 4 and 7)
sAddConv:
sAddConvEnd:
; Interrupt subroutine
sINTWDT:
sINTSWI:
than three machine cycles or arrange write instructions in such a way that they are generated at intervals
of three or more machine cycles. If a 16-bit transfer instruction is used or if write instructions are executed
at intervals of two machine cycles, the flash memory command sequence will not be transmitted properly,
and a malfunction may occur.
in the xth bus write cycle, instructions must be arranged in such a way that they are generated at intervals
of three or more machine cycles; machine cycles are counted from when the last xth bus write cycle is
generated to when each instruction is generated. Three NOP instructions are normally used. If the interval
between instructions is short, the toggle bit does not operation correctly.
NOP
NOP
NOP
LD
CMP
J
LD
LD
RET
LD
SWAP
AND
SWAP
AND
OR
XOR
SHRC
OR
LD
LD
LD
TEST
J
OR
LD
RET
LD
LD
CMP
J
LD
RETN
A,(IX)
A,(IX)
NZ,sLOOP1
(FLSCR1),0x40
(FLSCR2),0xD5
WA,IX
C
C,0x10
W
W,0x08
C,W
C,0x08
C
C,0xA0
(FLSCR1),C
(FLSCR2),0xD5
WA,IX
C.3
Z,sAddConvEnd
W,0x80
IX,WA
IX,0xF000
A,(IX)
A,(IX)
NZ,sINTWDT
(SYSCR2),0x10
Page 333
; (note 2)
; (note 2)
; (note 2)
; (step 6,9)
; Loop until the read values become the same
; Disable the execution of command sequence (step 10)
; Reflect the FLSCR1 setting
; Return to the program in RAM
; Enable the execution of command sequence. Make the
; FAREA setting.
; Reflect the FLSCR1 setting
; Loop until the read values become the same
; Generate system clock reset
TMP89FH42L
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