- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370889 > M3806FMCD170FP (Mitsubishi Electric Corporation) SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER PDF資料下載
參數(shù)資料
| 型號(hào)： | M3806FMCD170FP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機(jī) |
| 文件頁數(shù)： | 30/57頁 |
| 文件大?。?/td> | 833K |
| 代理商： | M3806FMCD170FP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁當(dāng)前第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁
MITSUBISHI MICROCOMPUTERS
3806 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
30
Processor Modes
Single-chip mode, memory expansion mode, and microprocessor
mode can be selected by changing the contents of the processor
mode bits CM
0
and CM
1
(bits 0 and 1 of address 003B
16
). In
memory expansion mode and microprocessor mode, memory can
be expanded externally through ports P0 to P3. In these modes,
ports P0 to P3 lose their I/O port functions and become bus pins.
Fig. 28 Memory maps in various processor modes
Fig. 29 Structure of CPU mode register
Single-Chip Mode
Select this mode by resetting the microcomputer with CNV
SS
con-
nected to V
SS
.
Memory Expansion Mode
Select this mode by setting the processor mode bits to “01” in soft-
ware with CNV
SS
connected to V
SS
. This mode enables external
memory expansion while maintaining the validity of the internal
ROM. Internal ROM will take precedence over external memory if
addresses conflict.
Microprocessor Mode
Select this mode by resetting the microcomputer with CNV
SS
con-
nected to V
CC
, or by setting the processor mode bits to “10” in
software with CNV
SS
connected to V
SS
. In microprocessor mode,
the internal ROM is no longer valid and external memory must be
used.
Port Name
Port P0
Port P1
Port P2
Port P3
Function
Outputs low-order byte of address.
Outputs high-order byte of address.
Operates as I/O pins for data D
7
to D
0
(including instruction codes).
P3
0
and P3
1
function only as output pins
(except that the port latch cannot be read).
P3
2
is the ONW input pin.
P3
3
is the RESET
OUT
output pin. (Note)
P3
4
is the
φ
output pin.
P3
5
is the SYNC output pin.
6
is the WR output pin, and P3
7
is the
RD output pin.
Note
: If CNV
SS
is connected to V
SS
, the microcomputer goes to
single-chip mode after a reset, so this pin cannot be used
as the RESET
OUT
output pin.
Table 2.
Functions of ports in memory expansion mode and
microprocessor mode
0000
16
0008
16
SFR area
0040
16
Internal RAM
reserved area
0000
16
0008
16
0040
16
Internal RAM
reserved area
YYYY
16
Internal ROM
FFFF
16
FFFF
16
Microprocessor mode
Memory expansion mode
The shaded areas are external memory areas.
:
YYYY
16
is the start address of internal ROM.
SFR area
8
0440
16
8
0440
16
b0
CPU mode register
(CPUM : address 003B
16
)
Processor mode bits
0 0 : Single-chip mode
0 1 : Memory expansion mode
1 0 : Microprocessor mode
1 1 : Not available
Stack page selection bit
0 : 0 page
1 : 1 page
b7
Not used (return “0” when read)
b1 b0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M38063M6D-221FP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38062M3221GP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38063M6D-236FP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38063E6FP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38067M8D-095FP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38078RFS | 制造商:Renesas Electronics Corporation 功能描述:EMULATION MCU/8BIT CMOS EMULATION CHIP - Bulk |
| M3808 | 功能描述:電纜固定件和配件 LTRSCG 625 BLACK RoHS:否 制造商:Heyco 類型:Cable Grips, Liquid Tight 材料:Nylon 顏色:Black 安裝方法:Cable 最大光束直徑:11.4 mm 抗拉強(qiáng)度: |
| M3808 BK001 | 制造商:Alpha Wire Company 功能描述:CBL 10COND 18AWG BLK 1000' |
| M3808 BK002 | 制造商:Alpha Wire Company 功能描述:CBL 10COND 18AWG BLK 500' |
| M3808 BK005 | 制造商:Alpha Wire Company 功能描述:CBL 10COND 18AWG BLK 100' |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。