参数资料
型号: SDED7-256M-N9T
厂商: SANDISK CORP
元件分类: 存储控制器/管理单元
英文描述: FLASH MEMORY DRIVE CONTROLLER, PBGA115
封装: 12 X 9 MM, 1.20 MM HEIGHT, FBGA-115
文件页数: 54/87页
文件大小: 1675K
代理商: SDED7-256M-N9T
Rev. 1.2
Design Considerations
mDOC H3 EFD Featuring Embedded TrueFFS Data Sheet
58
92-DS-1205-10
9.8.2.1
Read Mode
The LATENCY field controls the number of clock cycles between mDOC H3 sampling CE#
being asserted and when the first word of data is available to be latched by the host. This number
of clock cycles is equal to 3 + LATENCY.
WAIT_STATE allows setting the number of CLK after the host has read the last word until the
release of the CE#.
1: One CLK clock before CE# release
2: Two CLK clocks before CE# release
3: Three CLK clocks before CE# release
The HOLD bit in the Burst Mode Control register can be set to hold each data word valid for two
clock cycles rather than one.
Note: If HOLD = 1, then the data is available to be latched on this clock and on the subsequent
clock.
The LENGTH field must be programmed with the length of the burst to be performed (0
corresponds to 4 cycles; 1 to 8 cycles, 2 to 16 and 3 corresponds to 32 cycles). Each burst cycle
must read exactly this number of words.
The CLK input can be toggled continuously or can be halted. When halting the CLK input, the
following guidelines must be observed:
The host must provide a clock signal for the full sequence defined by the LATENCY,
WAIT STATE, HOLD and LENGTH bit fields. The clock can only be stopped after
the release of CE#.
The clock can be halted momentarily during a burst sequence but the host must
provide rising clock edges for the completion of the burst sequence.
Note: For full information regarding the Synchronous Burst Mode see the DOC Driver 1.0 Block
Device (BD) Software Developer Kit (SDK) Developer Guide.
Figure 16: Demux Read Burst Mode
相关PDF资料
PDF描述
SDED7-256M-N9Y FLASH MEMORY DRIVE CONTROLLER, PBGA115
SPMC68336AVFT20 32-BIT, MROM, 20.97 MHz, MICROCONTROLLER, PQFP160
SPMC68336GCFT20 32-BIT, MROM, 20.97 MHz, MICROCONTROLLER, PQFP160
SC104002VPVR2 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP112
S9S12XF512J0MLH MICROCONTROLLER, QFP64
相关代理商/技术参数
参数描述
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