- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45048 > M38C89EFFP 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP144 PDF資料下載
參數(shù)資料
| 型號(hào)： | M38C89EFFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP144 |
| 封裝： | 20 X 20 MM, 0.50 MM PITCH, PLASTIC, LQFP-144 |
| 文件頁數(shù)： | 5/54頁 |
| 文件大?。?/td> | 805K |
| 代理商： | M38C89EFFP |
第1頁第2頁第3頁第4頁當(dāng)前第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頁第53頁第54頁
13
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
38C8 Group
I/O PORTS
[Direction Registers]
The I/O ports P0–P3 and P41–P47 have direction registers which
determine the input/output direction of each individual pin. Each bit
in a direction register corresponds to one pin, 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 becomes
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 float-
ing. If a pin set to input is written to, only the port output latch is
written to and the pin remains floating.
Pull-up Control
By setting the PULL register A (address 001616) or the PULL register
B (address 001716), ports P0 to P4 except for port P40 can control
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.
Fig. 10 Structure of PULL register A and PULL register B
P00–P03 pull-up
P04–P07 pull-up
P10–P13 pull-up
P14–P17 pull-up
P20–P23 pull-up
P24–P27 pull-up
P30–P33 pull-up
Not used (return “0” when read)
PULL register A
(PULLA: address 001616)
0: No pull-up
1: Pull-up
b7
b0
Note: The contents of PULL register A and PULL register B do
not affect ports programmed as the output port.
Not used (return “0” when read)
P41 pull-up
P42 pull-up
P43 pull-up
P44 pull-up
P45 pull-up
P46 pull-up
P47 pull-up
b7b0
PULL register B
(PULLB: address 001716)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M38D24G6HP | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 |
| M38D24G4FP | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 |
| M38D24G4-XXXHP | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 |
| M38D28G8HP | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 |
| M38D29FFHP | 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38D20F1XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38D20F1XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38D20F2XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38D20F2XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38D20F3XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。