- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370889 > M38073M4-214FP (Mitsubishi Electric Corporation) SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER PDF資料下載
參數(shù)資料
| 型號： | M38073M4-214FP |
| 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)： | 53/74頁 |
| 文件大小： | 1182K |
| 代理商： | M38073M4-214FP |
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頁當(dāng)前第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁
53
3807 Group
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Processor Mode
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
: b1 and b0 of address 003B
16
). In memory
expansion mode and microprocessor mode, memory can be ex-
panded externally through ports P0 to P3. In these modes, ports P0
to P3 lose their I/O port functions and become bus pins.
Table. 7. Port functions in memory expansion mode and microprocessor mode
Port Name
Function
Port P0
Outputs 8-bits low-order byte of address.
Port P1
Outputs 8-bits high-order byte of address.
Port P2
Operates as I/O pins for data D
7
to D
0
(including instruction code)
Port P3
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 REST
OUT
output pin. (
Note
)
P3
4
is the
φ
output pin.
P3
5
is the SYNC output pin.
P3
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.
(1) Single-chip mode
Select this mode by resetting the microcomputer with CNV
SS
connected to V
SS
.
(2) Memory expansion mode
Select this mode by setting the processor mode bits (b1, b0) to "01"
in software with CNV
SS
connected to V
SS
. This mode enables
external memory expansion while maintaining the validity of the
internal ROM. However, some I/O devices will not support the memory
expansion mode. Internal ROM will take precedence over external
memory if addresses conflict.
(3) 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 soft-
ware with CNV
SS
connected to V
SS
. In microprocessor mode, the
internal ROM is no longer valid and external memory must be used.
Fig. 59. Memory maps in various processor modes
Fig. 60. Structure of CPU mode register
0000
16
0040
16
0840
16
0008
16
SFR area
0000
16
0840
16
YYYY
16
FFFF
16
Memory expansion mode
0008
16
SFR area
0040
16
FFFF
16
Microprocessor mode
internal RAM
reserved area
internal ROM
The shaded area are external memory area.
YYYY
16
indicates the first address of internal ROM.
*
*:
internal RAM
reserved area
b0
CPU mode register
(CPUM : address 003B
16
)
Processor mode bits (CM
1
, CM
0
)
b1
b0
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M38073M4-218FP | Low-Power Configurable Multiple-Function Gate 6-SOT-23 -40 to 85 |
| M38073M4-242FP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38073M4-245FP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38073M4-XXXFP | Low-Power Configurable Multiple-Function Gate 6-SOT-23 -40 to 85 |
| M38073M4A00FP | 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)。