參數(shù)資料
型號(hào)： MC72000
廠商： 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述： Integrated Bluetooth Radio
中文描述： 集成藍(lán)牙無線
文件頁數(shù)： 109/156頁
文件大?。?/td> 1782K
代理商： MC72000
MOTOROLA
MC72000
Advance Information Data Sheet
Go to: www.freescale.com
109
7.4.6.1.1.3
Gated Clock Operation
Gated clock mode is often used to hook up to SPI-type interfaces on microcontroller units (MCUs) or
external peripheral chips. In gated clock mode, the presence of the clock indicates that valid data is on the
STXD or SRXD pins. For this reason, no frame sync is needed in this mode. Once transmission of data has
completed, the clock is stopped.
Since gated clock mode is a synchronous mode (see Table 51), only the STCK is used. This clock can be
generated internally (master mode) or externally (slave mode). Several operating modes are possible as
detailed in Table 54.
For the case of internally generated clock, all internal bit clocks, word clocks, and frame clocks continue to
operate (although frame clock is ignored). When data is written to the STX register, the clock will operate
starting when the next word clock (time-slot) occurs. This allows data to be transferred out in periodic
intervals in gated clock mode.
With an external clock, the SSI waits for a clock signal to be received. Once the clock begins, valid data is
shifted in/out.
NOTE:
The bit clock pins must be kept free of timing glitches. If a single glitch
occurs, all ensuing transfers will be out of synchronization.
Figure 73 shows a gated clock timing diagram with comments in Table 55.
Table 54. Transmit and Receive Enables in Gated Clock Mode
Enables
Possible Clock
Source
Operating Mode
TE
RE
0
0
1
1
0
1
0
1
Not operational
Receive only -- receiver gets data when clocks occur
Transmit only -- data transfer as clocks occur
Transmit and receive operate synchronously -- data is transferred as clocks
occur
External
Internal or external
Internal or external
F
Freescale Semiconductor, Inc.
For More Information On This Product,
n
.
相關(guān)PDF資料
PDF描述
MC7445ARX1000LF RISC Microprocessor Hardware Specifications
MC7445ARX1000LG RISC Microprocessor Hardware Specifications
MC7447A PowerPC microprocessor
MC7447AHX1000NB PowerPC microprocessor
MC7447AHX1167NB PowerPC microprocessor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC7220C-100M RI-BLK 制造商:Farnell / Pro-Power 功能描述:CABLE DEF 7-2-20C 20CORE 100M 制造商:pro-power 功能描述:CABLE, DEF 7-2-20C, 20CORE, 100M 制造商:pro-power 功能描述:CABLE, DEF 7-2-20C, 20CORE, 100M; Reel Length (Imperial):328ft; Reel Length (Metric):100m; No. of Conductors:20; Voltage Rating:440V; No. of Strands x Strand Size:7 x 0.2mm; Conductor Area CSA:0.22mm2; Jacket Colour:Black; Jacket ;RoHS Compliant: Yes
MC7220C-100M RI-BLK 制造商:Farnell / Pro-Power 功能描述:CABLE DEF 7-2-20C 20 CORE 100M
MC7220C-25M RI-BLK 制造商:Farnell / Pro-Power 功能描述:CABLE DEF 7-2-20C 20CORE 25M 制造商:pro-power 功能描述:CABLE, DEF 7-2-20C, 20CORE, 25M
MC7220C-25M RI-BLK 制造商:Farnell / Pro-Power 功能描述:CABLE DEF 7-2-20C 20 CORE 25M
MC7225C-25M RI-BLK 制造商:Farnell / Pro-Power 功能描述:CABLE DEF 7-2-25C 25CORE 25M 制造商:pro-power 功能描述:MULTICORE, 25, 7/0.2MM, 25M, BLACK 制造商:pro-power 功能描述:CABLE, DEF 7-2-25C, 25CORE, 25M 制造商:PRIVATE LABEL 功能描述:CABLE, DEF 7-2-25C, 25CORE, 25M, Reel Length (Imperial):82ft, Reel Length (Metri
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*