Chapter 13
Serial Interface
Clock-Synchronous Communication
XIII - 29
13.3.2
Operation
Initialization (Serial Reset)
SCIFn has a built-in serial reset function for abnormal operation.
Registers other than TXBUFn must be changed during the serial reset of SCIFn.
The way of serial reset is as follows.
SCIFn (n = 0, 1): SCnMD2.SCnBRKF and SCnSTR are initialized by setting SCnMD3.SCnRSTN to "0".
SCIFn (n = 2, 3): SCnSTR and SCnIICSTR are initialized by setting SCnMD2.SC3RSTN to "0".
Pin Settings
(1) To use the data pins (SBOn/SBIn), the following settings are required.
<2-wire communication>
At data reception: Set SCnMD1.SCnSBIS to "1" and SCnMD1.SCnSBOS to "0".
At data transmission: Set SCnMD1.SCnSBIS to "0" and SCnMD1.SCnSBOS to "1".
<3-wire communication>
Set SCnMD1.SCnSBIS and SCnMD1.SCnSBOS to "1". (SCnIOM must be set to "0".)
(2) To use the clock pin (SBTn), the following setting is required.
At master (SCnMD1.SCnMST is "1"): the communication clock outputs from SBTn.
At slave (SCnMD1.SCnMST is "0"): input the communication clock to SBTn.
(3) In 4-wire communication, the following setting of the chip select pin (SBCSn) is required.
SCIFn (n = 0, 1): Set SCnMD3.SCnSBCSEN to "1" and select the direction SCnMD3.SCnSBCSLV.
SCIFn (n = 2, 3): Set SCnMD2.SCnSBCSEN to "1" and select the direction SCnMD2.SCnSBCSLV.
When the LSI is a master, the chip select signal outputs from SBCSn.
When the LSI is a slave, the input signal to SBTn is masked and SBOn is high impedance state while chip
select signal input to SBCSn is negated.
..
In time-division 2-wire communication with SBOn, be careful to prevent data collision at
SBOn.
..
..
When the LSI only send data (not receive data), set SCnMD1.SCnSBIS to "0".
When the LSI only receive data (not send data), set SCnMD1.SCnSBOS to "0".
..
Содержание MN101L Series
Страница 1: ...Cover MICROCOMPUTER MN101L MN101LR05D 04D 03D 02D LSI User s Manual Pub No 21705 015E ...
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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 ...