Chapter 1
Overview
Cautions for Circuit Setup
I - 37
Input and Output pin
When the direction of unused I/O pin is set to input, pull-up or down the pin with the resistor, the value of which
is typically between 10 k
Ω
and 100 k
Ω
.
When the unused I/O pin is configured as output, it should be left unconnected.
Figure:1.6.4 Unused I/O Pins
Recommended Condition of Each Pin *3
Pin name
Input/Output
Recommended condition of unused pins
P00 to P07
P10 to P17
P20 to P26
P30 to P37
P40 to P47
P50 to P57
P60 to P67
P70 to P77
P80 to P85
Input/output
Input
Pull-up (or down) the pins with the resistor, the value of which is typically between 10 k
Ω
and
100 k
Ω
. *1 *2
Output
Unconnect the pins.
XI
Input
Unconnect the pins.
XO
Output
Unconnect the pins.
P27
Input/output
When connecting capacitors between P27 and V
SS
, the discharge diodes between P27 and
V
DD30
should be connected
.
VREFP
-
Set V
REFP
= V
DD30.
NATRON
Input
Pull-up the pin to V
DD30
(when auto reset function is disabled) or pull-down the pin to V
SS
(when auto reset function is enabled) with the resistor, the value of which is typically
between 10 k
Ω
and 100 k
Ω
.
DMOD
Input
Pull-down the pin to V
SS
with the resistor, the value of which is typically between 1.5 k
Ω
and
100 k
Ω
. (Recommendation: between 10 k
Ω
and 100 k
Ω
)
*1 When unused pins are not connected, the microcomputer does not have the problem. However, it is easily influenced by the serge or
noise. Evaluate enough for determining the appropriate configuration.
*2 When pins are unused, set them to the general-purpose port function.
*3 Evaluate enough in consideration of the influence by exogenous noise and decide the condition of each pin.
Input
Input
Data
Data
Output OFF
Input Enable
Input Enable
Output OFF
Pull-up
resistor
Pull-down
resistor
Output Control
Output Control
Содержание MN101L Series
Страница 1: ...Cover MICROCOMPUTER MN101L MN101LR05D 04D 03D 02D LSI User s Manual Pub No 21705 015E ...
Страница 2: ......
Страница 8: ......
Страница 10: ......
Страница 11: ...Contents Contents 0 ...
Страница 22: ... Contents 11 ...
Страница 23: ...I Chapter 1 Overview 1 ...
Страница 62: ...Chapter 1 Overview I 40 Cautions for Circuit Setup ...
Страница 63: ...II Chapter 2 CPU 2 ...
Страница 94: ...Chapter 2 CPU II 32 Reset ...
Страница 95: ...III Chapter 3 Interrupts 3 ...
Страница 143: ...IV Chapter 4 Clock Mode Voltage Control 4 ...
Страница 175: ...V Chapter 5 Watchdog Timer WDT 5 ...
Страница 180: ...Chapter 5 Watchdog Timer WDT V 6 Operation ...
Страница 181: ...VI Chapter 6 Power Supply Voltage Detection 6 ...
Страница 189: ...VII Chapter 7 I O Port 7 ...
Страница 248: ...Chapter 7 I O Port VII 60 Port 8 ...
Страница 249: ...VIII Chapter 8 8 bit Timer 8 ...
Страница 282: ...Chapter 8 8 bit Timer VIII 34 8 bit Timer Cascade Connection ...
Страница 283: ...IX Chapter 9 16 bit Timer 9 ...
Страница 346: ...Chapter 9 16 bit Timer IX 64 IGBT Output with Dead Time ...
Страница 347: ...X Chapter 10 General Purpose Time Base Free Running Timer 10 ...
Страница 361: ...XI Chapter 11 RTC Time Base Timer RTC TBT 11 ...
Страница 371: ...XII Chapter 12 Real Time Clock RTC 12 ...
Страница 389: ...XIII Chapter 13 Serial Interface 13 ...
Страница 458: ...Chapter 13 Serial Interface XIII 70 IIC Communication ...
Страница 459: ...XIV Chapter 14 DMA Controller 14 ...
Страница 472: ...Chapter 14 DMA Controller XIV 14 DMA Data Transfer ...
Страница 473: ...XV Chapter 15 Buzzer 15 ...
Страница 479: ...XVI Chapter 16 A D Converter ADC 16 ...
Страница 493: ...XVII Chapter 17 LCD 17 ...
Страница 530: ...Chapter 17 LCD XVII 38 LCD Display Examples ...
Страница 531: ...XVIII Chapter 18 ReRAM 18 ...
Страница 538: ...Chapter 18 ReRAM XVIII 8 Command Library ...
Страница 539: ...XIX Chapter 19 On Board Debugger 19 ...
Страница 542: ...Chapter 19 On Board Debugger XIX 4 List of on board debugging functions ...
Страница 543: ...XX Chapter 20 Appendix 20 ...
Страница 555: ...Chapter 20 Appendix Instruction map XX 13 ...