tmp89fh42l TOSHIBA Semiconductor CORPORATION, tmp89fh42l Datasheet - Page 332
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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21.1
Flash Memory Control
RA006
21.1
Flash memory control register 1
Flash memory control register 2
(0x0FD0)
(0x0FD1)
FLSCR1
FLSCR2
(FLSCR2), and flash memory standby control register (FLSSTB).
Note 1: It is prohibited to make a setting in "Reserved".
Note 2: The flash memory control register 1 has a double-buffer structure comprised of the register FLSCR1 and a shift register.
Note 3: FLSMD must be set to either "0y010" or "0y101".
The flash memory is controlled by the flash memory control register 1 (FLSCR1), flash memory control register 2
Note 1: If "0xD5" is set on FLSCR2<CR1EN> with FLSCR1<FLSMD> set to "101", the flash memory goes into an active state,
Flash Memory Control
Writing "0xD5" to the register FLSCR2 allows a register setting to be reflected and take effect in the shift register. This means
that a register setting value does not take effect until "0xD5" is written to the register FLSCR2. The value of the shift register
can be checked by reading the register FLSCRM.
Read/Write
FLSMD
BAREA
FAREA
Read/Write
CR1EN
Bit Symbol
Bit Symbol
After reset
After reset
and MCU consumes the same amount of current as it does during a read.
Flash memory command
sequence and toggle control
BOOTROM mapping control
Flash memory area select control
FLSCR1 register
enable/disable control
7
0
7
*
FLSMD
R/W
6
1
6
*
5
0
5
Others
Page 318
*
Others:
0xD5
010:
101:
00:
01:
10:
11:
0:
1:
Enable a change in the FLSCR1 setting
Reserved
Disable command sequence and toggle execution
Enable command sequence and toggle execution
Reserved
Hide BOOTROM
Show BOOTROM
Assign the data area 0xC000 through 0xFFFF
to the data area 0xC000 through 0xFFFF (standard mapping).
Reserved
Assign the code area 0xC000 through 0xFFFF
to the data area 0xC000 through 0xFFFF.
Reserved
BAREA
R/W
4
0
4
*
CR1EN
MCU mode
W
3
0
3
*
FAREA
R/W
2
0
2
*
-
Show BOOTROM
Serial PROM mode
R/W
1
0
1
-
*
TMP89FH42L
R/W
0
0
0
*
-
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