参数资料
型号: S5933QE
厂商: APPLIEDMICRO INC
元件分类: 总线控制器
英文描述: PCI BUS CONTROLLER, PQFP160
封装: PLASTIC, QFP-160
文件页数: 73/176页
文件大小: 823K
代理商: S5933QE
3-177
ELECTRICAL CHARACTERISTICS
S5933
Figure 19. Pass-Thru Status Indicator Timing
BPCLK
PTATN#
PTWR
PTBURST#
PTNUM[1:0]
PTBE[3:0]#
Valid
t24
t25
Target Byte-Wide nv Memory Interface Timings
Functional Operation Range (VCC=5.0V ±5%, 0C to 70C, 50 pF load on outputs)
Symbol
t35
ERD# Cycle Time
8T
ns
Note 1
t36
ERD# Low Time
6T
ns
Note 1
t37
ERD# High Time
2T
ns
Note 1
t38
EA[15:0] Setup to ERD# or EWR# Low
T
ns
Note 1
t39
EA[15:0] Hold from ERD# or
EWR# High
T
ns
Note 1
t40
EQ[7:0] Setup to ERD# Rising Edge
10
ns
Note 1
t41
EQ[7:0] Hold from ERD# Rising Edge
2
ns
Note 1
t42
EWR# Cycle Time
ns
Note 1,2
t43
EWR# Low Time
ns
Note 1
t44
EWR# High Time
2T
6T
ns
Note 1
t45
EQ[7:0] Setup to EWR# Low
-10
0
ns
Note 1
t46
EQ[7:0] Hold from EWR# High
T
ns
Note 1
Parameter
Min
Max
Units
Notes
Notes:
1. T represents the clock period for the PCI bus clock (30ns @ 33 MHz).
2. The write cycle time is controlled by both the PCI bus clock and software operations to initiate the write operation of nv
memory. This parameter is the result of several software operations to the Bus Master Control/Status Register (MCSR).
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