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您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄370573 > HF234BT100D3201 (Hitachi,Ltd.) H8S/2345 F-ZTAT Hardware Manual PDF資料下載

型號(hào)：	HF234BT100D3201
廠商：	Hitachi,Ltd.
英文描述：	H8S/2345 F-ZTAT Hardware Manual
中文描述：	H8S/2345的F - ZTAT硬件手冊(cè)
文件頁(yè)數(shù)：	475/907頁(yè)
文件大小：	3277K
代理商：	HF234BT100D3201

Eight serial clock pulses are output in the transfer of one character, and when no transfer is

performed the clock is fixed high. When only receive operations are performed, however, the

serial clock is output until an overrun error occurs or the RE bit is cleared to 0. If you want to

perform receive operations in units of one character, you should select an external clock as the

clock source.

Data Transfer Operations:

SCI initialization (clocked synchronous mode)

Before transmitting and receiving data, you should first clear the TE and RE bits in SCR to 0,

then initialize the SCI as described below.

When the operating mode, transfer format, etc., is changed, the TE and RE bits must be cleared

to 0 before making the change using the following procedure. When the TE bit is cleared to 0,

the TDRE flag is set to 1 and TSR is initialized. Note that clearing the RE bit to 0 does not

change the contents of the RDRF, PER, FER, and ORER flags, or the contents of RDR.

Figure 12.15 shows a sample SCI initialization flowchart.

Start initialization

Set data transfer format in

SMR and SCMR

Set value in BRR

When transmitting and receiving data simultaneously, the TE and RE bits should be

cleared to 0 and then set to 1 at the same time.

Clear TE and RE bits in SCR to 0

Set TE and RE bits in SCR to 1, and

set RIE, TIE, TEIE, and MPIE bits

1-bit interval elapsed

Set CKE1 and CKE0 bits in SCR

(TE, RE bits 0)

[1] Set the clock selection in SCR. Be sure

to clear bits RIE, TIE, TEIE, and MPIE,

TE and RE, to 0.

[2] Set the data transfer format in SMR

[3] Write a value corresponding to the bit

rate to BRR. Not necessary if an

external clock is used.

[4] Wait at least one bit interval, then set

the TE bit or RE bit in SCR to 1.

Also set the RIE, TIE, TEIE, and MPIE

Setting the TE and RE bits enables the

TxD and RxD pins to be used.

Figure 12.15 Sample SCI Initialization Flowchart

相關(guān)PDF資料	PDF描述
HF234AQ100D3201	H8S/2345 F-ZTAT Hardware Manual
HF234GT100D3201	H8S/2345 F-ZTAT Hardware Manual
HF234BQ100D3201	H8S/2345 F-ZTAT Hardware Manual
HF3FD	SUBMINIATURE HIGH POWER RELAY
HF420	MINIATURE INTERMEDIATE POWER RELAY

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
HF234GT100D3201	制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:H8S/2345 F-ZTAT Hardware Manual
HF23802M	制造商:HOPERF 制造商全稱(chēng):HOPERF 功能描述:SAW FILTER
HF23802MSIP5K	制造商:HOPERF 制造商全稱(chēng):HOPERF 功能描述:SAW FILTER
HF238901D	制造商:HOPERF 制造商全稱(chēng):HOPERF 功能描述:SAW FILTER
HF238901DSIP5D	制造商:HOPERF 制造商全稱(chēng):HOPERF 功能描述:SAW FILTER

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