參數(shù)資料
型號(hào)： MB91151APMC-G
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： RISC MICROCONTROLLER, PQFP144
封裝： 20 X 20 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LFQFP-144
文件頁(yè)數(shù)： 15/96頁(yè)
文件大?。?/td> 2300K
代理商： MB91151APMC-G
MB91151A Series
22
DS07-16312-2E
■ MODE SETTING
1.
Mode Pins
As shown below, three pins, MD2, MD1, and MD0 are used to indicate an operation.
Mode pins and set modes
* : Not available on this product type
2.
Mode Data
The data which the CPU writes to “0000 07FFH” after reset is called mode data.
It is the mode register (MODR) that exists at “0000 07FFH”. Once a mode is set in this register, operations will
take place in that mode. The mode register can be written only once after reset.
The mode specified in the register is enabled immediately after it is written.
[bit7, bit6] : M1, M0
These are bus mode setting bits. Specify the bus mode to be set to after writing to the mode register.
Note : Of the above options, only “01” or “10“ should be set for this model.
[bit5 to bit0] :
These bits are reserved for the system.
“0” should be written to these bits at all times.
Mode pin
Mode name
Reset vector
access area
External data
bus width
Bus modes
MD2
MD1
MD0
0
External vector mode 0
External
8 bits
External bus mode
0
1
External vector mode 1
External
16 bits
0
1
0
External vector mode 2
External
32 bits
Not available on this
product type
0
1
External vector mode
Internal
(Mode register)
Single-chip mode*
1
Not available
M1
M0
Function
Remarks
0
Single-chip mode
Setting not allowed
0
1
Internal RAM-external bus mode
1
0
External bus mode
11
Setting not allowed
MODR
Initial value
Access
Address : 0000 07FFH
XXXXXXXXB
W
W : Write only, X : Undefined
M1
M0
Bus mode setting bits
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