參數(shù)資料
型號： MCIMX258CVM4
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 400 MHz, MICROPROCESSOR, PBGA400
封裝： 17 X 17 MM, 0.80 MM PITCH, ROHS COMPLIANT, PLASTIC, MAPBGA-400
文件頁數(shù)： 98/154頁
文件大?。?/td> 1498K
代理商： MCIMX258CVM4
i.MX25 Applications Processor for Consumer and Industrial Products, Rev. 8
48
Freescale Semiconductor
Figure 14. MDMA Write Mode Timing
To meet timing requirements, a number of timing parameters must be controlled. See Table 38 for details
on timing parameters for MDMA read and write modes.
3.7.2.3
Ultra DMA (UDMA) Mode Timing
UDMA mode timing is more complicated than PIO mode or MDMA mode. In this section, timing
diagrams for UDMA in- and out-transfers are provided.
Table 38. Timing Parameters for MDMA Read and Write Modes
ATA
Parameter
MDMA Read1
and Write2
Timing
Parameters
Relation
Adjustable
Parameter(s)
tm, ti
tm
tm(min.) = ti(min.) = time_m
× T – (tskew1 + tskew2 + tskew5)
time_m
td
td, td1
td1(min.) = td(min.) = time_d
× T – (tskew1 + tskew2 + tskew6)
time_d
tk
tk(min.) = time_k
× T – (tskew1 + tskew2 + tskew6)
time_k
t0
—
t0(min.) = (time_d + time_k)
× T
time_d, time_k
tg(read)
tgr
tgr(min.–read) = tco + tsu + tbuf + tbuf + tcable1 + tcable2
tgr(min.–drive) = td – te(drive)
time_d
tf(read)
tfr
tfr(min.–drive) =0 k
—
tg(write)
—
tg(min.–write) = time_d
× T –(tskew1 + tskew2 + tskew5)
time_d
tf(write)
—
tf(min.–write) = time_k
× T – (tskew1 + tskew2 + tskew6)
time_k
tL
—
tL(max.) = (time_d + time_k–2)
× T – (tsu + tco + 2 × tbuf + 2 × tcable2)
time_d, time_k3
3 tk1 in the UDMA figures equals (tk –2
× T).
tn, tj
tkjn
tn= tj= tkjn = (max.(time_k,. time_jn)
× T – (tskew1 + tskew2 + tskew6)
time_jn
—ton
toff
ton = time_on
× T – tskew1
toff = time_off
× T – tskew1
—
ADDR
(See note 1)
DIOW
Write Data(15:0)
DMARQ
DMACK
tkjn
tk1
buffer_en
tm ton td1
tk
td
toff
相關(guān)PDF資料
PDF描述
MD80C154-36/883D 8-BIT, 36 MHz, MICROCONTROLLER, CDIP40
MQ80C52TXXX-16P883D 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44
MC80C52XXX-30/883:D 8-BIT, MROM, 30 MHz, MICROCONTROLLER, CDIP40
MD80C154-25/883 8-BIT, 25 MHz, MICROCONTROLLER, CDIP40
MD80C154-20P883 8-BIT, 20 MHz, MICROCONTROLLER, CDIP40
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCIMX25LPDK 制造商:Freescale Semiconductor 功能描述:PRODUCT DEVELOPMENT KIT FOR THE I MX25 APPLICATIONS PROCESSO - Boxed Product (Development Kits) 制造商:Freescale Semiconductor 功能描述:KIT DEV I.MX25 FOR LINUX 制造商:Freescale 功能描述:Product Development Kit For The I.MX25 Applications Processor
MCIMX25LPDKJ 功能描述:開發(fā)板和工具包 - ARM HARDWARE RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V
MCIMX25LPDKJ 制造商:Freescale Semiconductor 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE
MCIMX25PDKCPUJ 功能描述:開發(fā)板和工具包 - ARM CPU BD, MX25, LINUXJ RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V
MCIMX25WPDK 功能描述:開發(fā)板和工具包 - ARM MCIMX25 PDK ForLINUX RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V
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