參數(shù)資料
型號(hào)： M37920FGCGP
廠商： Mitsubishi Electric Corporation
英文描述： Single Chip 16 Bits CMOS Microcomputer(16位單片機(jī))
中文描述： 單片微機(jī)16位的CMOS（16位單片機(jī)）
文件頁數(shù)： 28/158頁
文件大?。?/td> 1261K
代理商： M37920FGCGP
M37920FCCGP, M37920FCCHP
M37920FGCGP, M37920FGCHP
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
MITSUBISHI MICROCOMPUTERS
28
Single-chip
mode
SFR
Unused area
RAM
ROM
Unused area
Reserved area
(Note)
Memory expansion
mode
: External memory area.
Note:
Do not access this area.
SFR
RAM
ROM
Reserved area
(Note)
Microprocessor
mode
SFR
RAM
0
16
FF
16
FF0000
16
16
FFFFFF
16
Fig. 13 Memory maps in three processor modes
Fig. 12 Bit configuration of processor mode register 1
7
6
0
5
4
3
2
1
0
0
Processor mode register 1
Fix this bit to “0”.
RDY input select bit
(Notes 2 to 4)
0 : RDY input is disabled. (P3
0
functions as a programmable I/O port pin.)
1 : RDY input is enabled. (P3
0
functions as pin RDY.)
ALE output select bit
(Notes 2 and 3)
0 : ALE output is disabled. (P4
0
functions as a programmable I/O port pin.)
1 : ALE output is enabled. (P4
0
functions as pin ALE.)
Direct page register switch bit
(Note 1)
0 : Only DPR0 is used.
1 : DPR0 to DPR3 are used.
Recovery cycle insert select bit
(Notes 2 and 3)
0 : No recovery cycle is inserted at access to the external area.
1 : Recovery cycle is inserted at access to the external area.
Address
5F
16
HOLD input, HLDA output select bit
(Notes 2 to 4)
0 : HOLD input and HLDA output are disabled.
(P4
3
and P4
4
function as programmable I/O port pins.)
1 : HOLD input and HLDA output are enabled.
(P4
3
and P4
4
function as pins HOLD and HLDA, respectively.)
“0” at read.
Internal ROM access wait bit
(Note 5)
0 : 1 wait
1 : 0 wait
Notes 1:
After reset, this bit’s contents can be switched only once. During the software execution, be sure not to switch this bit’s contents.
2:
In the single-chip mode, these bits’ functions are disabled regardless of these bits’ contents.
3:
While V
SS
level voltage is applied to pin MD0, each of these bits is “0” at reset. While V
CC
level voltage is applied to pin MD0,
on the other hand, each of these bits is “1” at reset.
4:
In the memory expansion or microprocessor mode, if this bit’s contents is switched from “1” to “0”, this bit will be cleared to “0”.
After this clearance, this bit cannot return to “1”. If it is necessary to set this bit to “1”, be sure to reset the microcomputer.
5:
In the microprocessor mode, this bit is invalid.
When the internal flash memory is reprogrammed in the CPU reprogramming mode, be sure to clear this bit to “0”.
V
SS
V
CC
MD0
After reset is removed, the
single-chip mode is selected.
By changing the processor
mode bits’ contents by soft-
ware, the single-chip mode,
memory expansion mode or
microprocessor mode can be
selected.
After reset is removed, the mi-
croprocessor mode is se-
lected.
Description
Mode
Single-chip mode
Memory expansion mode
Microprocessor mode
Table 9. Selection method of processor mode
Microprocessor mode
相關(guān)PDF資料
PDF描述
M37920FCCGP Single Chip 16 Bits CMOS Microcomputer(16位單片機(jī))
M37920FCCHP Single Chip 16 Bits CMOS Microcomputer(16位單片機(jī))
M37920FGCHP Single Chip 16 Bits CMOS Microcomputer(16位單片機(jī))
M3802 Single Chip 8 Bits Microcomputer(8位單片機(jī))
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37920FGCHP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
M37920S4CGP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER
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