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參數(shù)資料
| 型號(hào)： | mPD789324 |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁數(shù)： | 24/96頁 |
| 文件大?。?/td> | 482K |
| 代理商： | MPD789324 |
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Preliminary Product Information U14673EJ1V0PM00
24
μ
PD789322,789324,789326,789327
Table 5-3. Port Mode Registers and Output Latch Settings When Using Alternate Functions
Alternate Function
Pin Name
Name
I/O
PM
××
P
××
Input
1
×
P20
SCK10
Output
0
1
P21
SO10
Output
0
1
P22
SI10
Input
1
×
P40 to P43
KR00 to KR03
Input
1
×
P60
TO40
Output
0
0
P61
INT
Input
1
×
P80 to P85
S22 to S17
Note
Output
×
×
Note
When using P80 to P85 pins as S22 to S17, set port function register 8 (PF8) to 3FH.
Remark
×
:
don’t care
PM
××
: Port mode register
P
××
:
Port output latch
(2) Pull-up resistor option register 0 (PU0)
This register sets whether to use on-chip pull-up resistors for ports 0, 1, and 4 on a port by port basis. An on-
chip pull-up resistor can be used only for those bits set to the input mode of a port for which the use of the on-
chip pull-up resistor has been specified using PU0.
For those bits set to the output mode, on-chip pull-up resistors cannot be used, regardless of the setting of
PU0. This also applies to alternate-function pins used as output pins.
PU0 is set using a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to 00H.
Figure 5-4. Format of Pull-Up Resistor Option Register 0
Symbol
7
6
5
<4>
3
2
<1>
<0>
Address
After reset
R/W
PU0
0
0
0
PU04
0
0
PU01
PU00
FFF7H
00H
R/W
PU0m
Port m on-chip pull-up resistor selection
(m = 0, 1, 4)
0
An on-chip pull-up resistor is not connected
1
An on-chip pull-up resistor is connected
Caution Always set bits 2, 3, and 5 to 7 to 0.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| mPD789326 | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| MPL135 | Big current (55A), Footprint compatible with most standard, Lower temperature rise at big current, Low DCR, Without noise |
| MPL135-0R4 | Big current (55A), Footprint compatible with most standard, Lower temperature rise at big current, Low DCR, Without noise |
| MPL135-1R0 | Big current (55A), Footprint compatible with most standard, Lower temperature rise at big current, Low DCR, Without noise |
| MPL135-1R5 | Big current (55A), Footprint compatible with most standard, Lower temperature rise at big current, Low DCR, Without noise |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPD789324GB-XXX-8ET | 制造商:NEC 制造商全稱:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER |
| MPD789326 | 制造商:NEC 制造商全稱:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER |
| MPD789326GB-XXX-8ET | 制造商:NEC 制造商全稱:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER |
| MPD789327 | 制造商:NEC 制造商全稱:NEC 功能描述:8-Bit Single-Chip Microcontrollers |
| MPD789327GB-XXX-8ET | 制造商:NEC 制造商全稱:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER |
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