国产精品成人VA在线观看-国产乱妇乱子视频在播放-国产日韩精品一区二区三区在线-国模精品一区二区三区

參數資料
型號: MC145574
廠商: Motorola, Inc.
英文描述: ISDN S/T-Interface Transceiver
中文描述: 綜合業務數字網S / T的接口收發器
文件頁數: 40/164頁
文件大小: 1072K
代理商: MC145574
MC145574
5–2
MOTOROLA
back high after the transaction, before another rising edge of SCPCLK is encountered. Note that
SCP Rx is ignored during the time that SCP Tx is being driven. Also note that SCP Tx comes out
of high impedance only when it is transmitting data.
Figure 5–1. Serial Control Port Nibble Register Read Operation
SCPCLK
R/W
A1
A2
A0
D3
D2
D0
D1
HIGH IMPEDANCE
DONT CARE
DONT CARE
SCP Rx
SCP Tx
SCPEN
A nibble register write is an 8–bit SCP transaction. Figure 5–2 illustrates this process. To initiate an
SCP nibble register write, the SCPEN pin must be brought low. Following this, an R/W bit followed
by three primary address bits are shifted (MSB first) into an intermediate buffer register on the first
four rising edges of SCPCLK following the high–to–low transition of SCPEN. If a write operation is
to be performed, then R/W should be a 0. The three address bits, clocked in after the R/W bit, select
the nibble register to be written to. The data shifted in on the next four rising edges of SCPCLK is
then written to the selected register. Throughout this whole operation the SCP Tx pin remains in high–
impedance state. Note that if a selected register or bit in a selected register is “read only”, then a
write operation has no effect.
Figure 5–2. Serial Control Port Nibble Register Write Operation
SCPEN
R/W
A1
A2
A0
D3
D2
D0
D1
HIGH IMPEDANCE
DONT CARE
SCPCLK
SCP Tx
SCP Rx
DONT CARE
NOTES:
1. R/W = 0 for a read operation.
2. Data is shifted out on SCP Tx on the falling edges of SCPCLK, MSB first.
3. Data is shifted into the chip from SCP Rx on the rising edges of SCPCLK, MSB first.
4. A2, A1, A0 = 0 to 6.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關PDF資料
PDF描述
MC14559BDWR2 Successive Approximation Registers
MC14559B Successive Approximation Registers
MC14559BCP Successive Approximation Registers
MC1455 Timing Circuit
MC1455BD Timing Circuit
相關代理商/技術參數
參數描述
MC145574AAC 功能描述:IC TRANSCEIVER ISDN 32-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器,接收器,收發器 系列:- 標準包裝:1,000 系列:- 類型:收發器 驅動器/接收器數:2/2 規程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 供應商設備封裝:16-SOIC 包裝:帶卷 (TR)
MC145574AACR2 功能描述:IC TRANSCEIVER ISDN 32-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器,接收器,收發器 系列:- 標準包裝:1,000 系列:- 類型:收發器 驅動器/接收器數:2/2 規程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 供應商設備封裝:16-SOIC 包裝:帶卷 (TR)
MC145574ADW 功能描述:IC TRANSCEIVER ISDN 28-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器,接收器,收發器 系列:- 標準包裝:1,000 系列:- 類型:收發器 驅動器/接收器數:2/2 規程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 供應商設備封裝:16-SOIC 包裝:帶卷 (TR)
MC145574ADWR2 功能描述:IC TRANSCEIVER ISDN 28-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器,接收器,收發器 系列:- 標準包裝:1,000 系列:- 類型:收發器 驅動器/接收器數:2/2 規程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 供應商設備封裝:16-SOIC 包裝:帶卷 (TR)
MC145574AEG 制造商:Freescale Semiconductor 功能描述: