- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370905 > M38257E8FP (Mitsubishi Electric Corporation) SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER PDF資料下載
參數(shù)資料
| 型號(hào)： | M38257E8FP |
| 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(yè)數(shù)： | 14/70頁(yè) |
| 文件大?。?/td> | 607K |
| 代理商： | M38257E8FP |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)當(dāng)前第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3825 Group
14
I/O PORTS
Direction Registers
The 3825 group has 43 programmable I/O pins arranged in seven
I/O ports (ports P1
6
, P1
7
P2, P4–P6, P7
1
–P7
7
, P8
0
and P8
1
). The
I/O ports have direction registers which determine the input/output
direction of each individual pin. (Ports P1
6
and P1
7
are shared
with bits 6 and 7 of the port P1 output control register). Each bit in
a direction register corresponds to one pin, and each pin can be
set to be input port or output port.
When “0” is written to the bit corresponding to a pin, that pin be-
comes an input pin. When “1” is written to that bit, that pin be-
comes an output pin.
If data is read from a pin set to output, the value of the port output
latch is read, not the value of the pin itself. Pins set to input are
floating. If a pin set to input is written to, only the port output latch
is written to and the pin remains floating.
Port P1 Output Control Register
Bit 0 of the port P1 output control register (address 0003
16
) en-
ables control of the output of ports P1
0
to P1
5
.
When the bit is set to “1”, the port output function is valid.
In this case, setting of the PULL register A to ports P1
0
to P1
5
is
invalid.
When resetting, bit 0 of the port P1 output control register is set to
“0” (the port output function is invalid.)
Pull-up/Pull-down Control
By setting the PULL register A (address 0016
16
) or the PULL reg-
ister B (address 0017
16
), ports P0 to P8 except P7
0
can control ei-
ther pull-down or pull-up (pins that are shared with the segment
output pins for LCD are pull-down; all other pins are pull-up) with
a program.
However, the contents of PULL register A and PULL register B do
not affect ports programmed as the output ports. (except for ports
P0 and P3).
Ports P0 and P3 share the port output control function with bit 0 of
the PULL register A. When set to “1”, the port output function is in-
valid (Pull-down is valid).
When set to “0”, the port output function is valid (Pull-down is in-
valid).
The PULL register A setting is invalid for pins set to segment out-
put with the segment output enable register.
Fig. 11 Structure of PULL register A and PULL register B
P0,
P1
0
–P1
5
, P3 pull-down
(shared with P0 and P3 output
control : refer to the text)
P1
6
–P1
7
pull-up
P2
0
–P2
7
pull-up
P8
0
, P8
1
pull-up
P4
0
–P4
3
pull-up
P4
4
–P4
7
pull-up
Not used (return “0” when read)
PULL register A
(PULLA : address 0016
16
)
b7
b0
P5
0
–P5
3
pull-up
P5
4
–P5
7
pull-up
P6
0
–P6
3
pull-up
P6
4
–P6
7
pull-up
P7
1
–P7
3
pull-up
P7
4
–P7
7
pull-up
Not used (return “0” when read)
0 : Disable
1 : Enable
PULL register B
(PULLB : address 0017
16
)
b7
b0
Note :
The contents of PULL register A and PULL register B
do not affect ports programmed as the output port.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M38257E8FS | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38257E8GP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38257M8-053 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38257M8-053FP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38257M8-062FP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38257E8FS | 功能描述:IC 740 MCU OTP 32K 100-PQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標(biāo)準(zhǔn)包裝:160 系列:S08 核心處理器:S08 芯體尺寸:8-位 速度:40MHz 連通性:I²C，LIN，SCI，SPI 外圍設(shè)備:LCD，LVD，POR，PWM，WDT 輸入/輸出數(shù):53 程序存儲(chǔ)器容量:32KB（32K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:1.9K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 12x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:64-LQFP 包裝:托盤 |
| M38258MCM084 | 制造商:Panasonic Industrial Company 功能描述:IC |
| M3826 | 功能描述:電纜固定件和配件 LTRSCG 1000 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: |
| M3826 BK001 | 制造商:Alpha Wire Company 功能描述:CBL 2COND 16AWG BLK 1000' |
| M3826 BK002 | 制造商:Alpha Wire Company 功能描述:CBL 2COND 16AWG BLK 500' |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。