參數(shù)資料
型號: SST55LD019C-45-I-BWE
廠商: SILICON STORAGE TECHNOLOGY INC
元件分類: 存儲控制器/管理單元
英文描述: FLASH MEMORY DRIVE CONTROLLER, PBGA84
封裝: LEAD FREE, MO-210, TFBGA-84
文件頁數(shù): 64/76頁
文件大?。?/td> 711K
代理商: SST55LD019C-45-I-BWE
Advance Information
ATA Flash Disk Controller
SST55LD019A / SST55LD019B / SST55LD019C
2004 Silicon Storage Technology, Inc.
S71241-02-000
4/04
67
12.2.3 Multi-word DMA Data Transfer
Note: All AC specifications are guaranteed by design.
FIGURE
12-4: INITIATING A MULTI-WORD DMA DATA TRANSFER
TABLE
12-9: MULTI-WORD DMA TIMING PARAMETERS - MODE 2
Symbol
Parameter
Min
Max
Units
T01
1. T0 is the minimum total cycle time, TD is the minimum IORD#/IOWD# assertion time, and TK (TKR or TKW, as appropriate)
is the minimum IORD#/IOWD# negation time. A host should lengthen TD and/or TK to ensure that T0 is equal to the value
reported in the device ID.
Cycle Time
120
ns
TD
IORD#/IOWD# Asserted Pulse Width
70
ns
TE
IORD# Data Access
50
ns
TF
IORD# Data Hold
5
ns
TG
IORD#/IOWD# Data Setup
20
ns
TH
IOWD# Data Hold
10
ns
TI
DMACK# to IORD#/IOWR# Setup
0
ns
TJ
IORD#/IOWD# to DMACK Hold
5
ns
TKR
IORD# Negated Pulse Width
25
ns
TKW
IOWD# Negated Pulse Width
25
ns
TLR
IORD# to DMARQ Delay
35
ns
TLW
IOWD# to DMARQ Delay
35
ns
TM
CS(1:0) Valid to IORD#/IOWD#
25
ns
TN
CS(1:0) Hold
10
ns
TZ
DMACK# to Read Data Released
25
ns
T12-9.0 1241
Note:
The host should not assert DMACK# or negate both CS1FX#
and CS3FX# until the assertion of DMARQ is detected.
The maximum time from the assertion of DMARQ to the assertion
of DMACK# or the negation of both CS0 and CS1 is not defined.
TM
TI
TD
TG
TF
TH
TE
Write DQ15-0
Read DQ15-0
IORD#/IOWR
DMACK#
DMARQ
CS1FX#/CS3FX#
1241 F05.0
See note
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