參數(shù)資料
型號(hào)： M37902FJCHP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述： 單片16位CMOS微機(jī)
文件頁(yè)數(shù)： 103/143頁(yè)
文件大?。?/td> 1463K
代理商： M37902FJCHP
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103
M37902FCCHP, M37902FGCHP, M37902FJCHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Flash Memory Parallel I/O Mode
The flash memory parallel I/O mode is used to manipulate the inter-
nal flash memory with a parallel programmer. This parallel program-
mer uses the software commands listed in Table 19 to do the flash
memory manipulations, such as read/programming/erase opera-
tions.
In the flash memory parallel I/O mode, each block can be protected
from erasing/programming (in other words, block lock).
Table 19. Software commands (flash memory parallel I/O mode)
Software Command
Read Array
Read Status Register
Clear Status Register
Page Programming
(Note)
Block Erase
Erase All Unclocked Block
Lock Bit Programming
Read Lock Bit Status
Note:
Programming is performed in a unit of 256 bytes, with the low-order
address assigned in the range of 00
16
—
FF
16
(byte addresses).
User ROM Area and Boot ROM Area
The user ROM area and boot ROM area can be reprogrammed in
the flash memory parallel I/O mode.
The programming and block erase operations can be performed only
to these areas.
The boot ROM area, 16 Kbytes in size, is assigned to addresses
0000
16
–
3FFF
16
(byte addresses), so that programming and block
erase operations can be performed only to this area. (Access to any
address out of this area is prohibited).
The erasable block in the boot ROM area is only one block, consist-
ing of 16 Kbytes. The reprogramming control firmware to be used in
the flash memory serial I/O mode has been stored to this boot ROM
area on our shipment. Therefore, do not reprogram the boot ROM
area if the user uses the flash memory serial I/O mode.
Addresses FFB0
16
to FFBF
16
are the reserved area for the serial
programmer. Therefore, when the user uses the flash memory serial
I/O mode, do not program to this area.
Note that, when the boot ROM area is read out from the CPU in the
CPU reprogramming mode, described later, its addresses will be
shifted to C000
16
—
FFFF
16
(byte addresses).
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