參數(shù)資料
型號(hào)： M37736EHLHP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, OTPROM, MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁(yè)數(shù)： 53/63頁(yè)
文件大?。?/td> 8367K
代理商： M37736EHLHP
CENTRAL PROCESSING UNIT (CPU)
7733 Group User’s Manual
2–19
2.4 Memory allocation
Fig. 2.4.1 Structure of memory allocation control register and its setting method
ROM size
3
4
7 to 5
0
Not implemented.
Notes 1: The case where value “55 16” is written in of the procedure listed below is not included.
2: When changing these bits, this change must be performed in an area which is internal
ROM area before and after this change, for example addresses 00C000 16 to 00FFFF16.
Also, when changing these bits, be sure to follow the procedure listed below.
3: This figure is applied only to the M37733MHBXXXFP. For the other microcoputers,
please refer to the latest datasheets on the English document CD-ROM or our Web site.
Bit
Bit name
Functions
At reset
RW
0
1
2
Memory allocation selection bits
(Notes 1 and 2)
0
0 0 0: 124 Kbytes,
3968 bytes
0 0 1: 120 Kbytes,
3968 bytes
0 1 0: 60 Kbytes,
2048 bytes
0 1 1: Do not select.
1 0 0: 32 Kbytes,
2048 bytes
1 0 1: 16 Kbytes,
2048 bytes
1 1 0: 96 Kbytes,
3968 bytes
1 1 1: Do not select.
0
b2b1b0
Memory allocation control register (address 63 16) (Note 3)
b1
b0
b2
b3
b4
b5
b6
b7
0
RW
0
RW
Un-
defined
|
Note: When changing bits 2 to 0, be sure
to follow this procedure.
Procedure
By using the LDM instruction, write value “55 16” to address 6316.
(By this, writing to the memory allocation selection bits is enabled.)
By using the LDM instruction, write value “00000XXX 2” to
address 6316.
(Values of b2, b1, and b0 shown in the above Figure)
Writing is performed
by the next instruction.
Must be fixed to “0.” (Note 1)
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