參數(shù)資料
型號: M50FW080N5P
廠商: 意法半導體
英文描述: 8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory
中文描述: 8兆1兆× 8,統(tǒng)一座3V電源閃存固件集線器
文件頁數(shù): 34/56頁
文件大?。?/td> 292K
代理商: M50FW080N5P
Firmware Hub (FWH) interface Configuration Registers
M50FW080
34/55
6.3
Manufacturer Code Register
Reading the Manufacturer Code Register returns the manufacturer code for the memory.
The manufacturer code for STMicroelectronics is 20h. This register is read-only and writing
to it has no effect.
6.4
Device Code Register
Reading the Device Code Register returns the device code for the memory, 2Dh. This
register is read-only and writing to it has no effect.
Table 12.
Table 13.
Lock Register bit definitions
(1)
1.
Applies to Top Block Lock Register (T_BLOCK_LK) and Top Block [-1] Lock Register (T_MINUS01_LK) to
Top Block [-15] Lock Register (T_MINUS15_LK).
Bit
Bit name
Value
Function
7-3
Reserved
2
Read-Lock
‘1’
Bus Read operations in this Block always return 00h.
‘0’
Bus read operations in this Block return the Memory Array contents.
(Default value).
1
Lock-Down
‘1’
Changes to the Read-Lock bit and the Write-Lock bit cannot be
performed. Once a ‘1’ is written to the Lock-Down bit it cannot be
cleared to ‘0’; the bit is always reset to ‘0’ following a Reset (using RP
or INIT) or after power-up.
‘0’
Read-Lock and Write-Lock can be changed by writing new values to
them. (Default value).
0
Write-Lock
‘1’
Program and Block Erase operations in this Block will set an error in
the Status Register. The memory contents will not be changed.
(Default value).
‘0’
Program and Block Erase operations in this Block are executed and
will modify the Block contents.
General-Purpose Input Register definition
(1)
1.
Applies to the General Purpose Input Register (FGPI_REG).
Bit
Bit Name
Value
Function
7-5
Reserved
4
FGPI4
‘1’
Input Pin FGPI4 is at V
IH
Input Pin FGPI4 is at V
IL
Input Pin FGPI3 is at V
IH
Input Pin FGPI3 is at V
IL
Input Pin FGPI2 is at V
IH
Input Pin FGPI2 is at V
IL
Input Pin FGPI1 is at V
IH
Input Pin FGPI1 is at V
IL
Input Pin FGPI0 is at V
IH
Input Pin FGPI0 is at V
IL
‘0’
3
FGPI3
‘1’
‘0’
2
FGPI2
‘1’
‘0’
1
FGPI1
‘1’
‘0’
0
FGPI0
‘1’
‘0’
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相關代理商/技術參數(shù)
參數(shù)描述
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