參數(shù)資料
型號: EWIXP460AC
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: 400 MHz, RISC PROCESSOR, PBGA544
封裝: LEAD FREE, PLASTIC, BGA-544
文件頁數(shù): 53/163頁
文件大?。?/td> 1123K
代理商: EWIXP460AC
Electrical Specifications
May 2005
Intel IXP45X and Intel IXP46X Product Line of Network Processors Datasheet
146
Document Number: 306261-002
Figure 36.
Motorola* Simplex Mode
Table 69.
Motorola* Simplex Mode Values (Sheet 1 of 2)
Symbol
Parameter
Min.
Max.
Units
Notes
Tad2valcs
Valid address to valid chip select
1
4
Cycles
Tdval2valds
Write data valid prior to EXP_MOT_DS_N falling edge
1
4
Cycles
3, 7
Tdspulse
Pulse width of the EXP_MOT_DS_N
1
16
Cycles
4, 7
Tdholdafterds
Valid data after the rising edge of EXP_MOT_DS_N
1
4
Cycles
5, 7
NOTES:
1. EX_ALE is not valid in simplex mode of operation.
2. Setting the address phase parameter (T1) will adjust the duration that the address appears to the external
device.
3. Setting the data setup phase parameter (T2) will adjust the duration that the data appears prior to a data
strobe (read or write) to an external device.
4. Setting the data strobe phase parameter (T3) will adjust the duration that the data strobe appears (read or
write) to an external device. Data will be available during this time as well.
5. Setting the data hold strobe phase parameter (T4) will adjust the duration that the chip selects, address,
and data (during a write) will be held.
6. Setting the recovery phase parameter (T5) will adjust the duration between successive accesses on the
expansion interface.
7. T is the period of the clock measured in ns.
8. Clock to output delay for all signals will be a maximum of 15 ns for devices requiring operation in
synchronous mode.
9. Timing was designed for a system load between 5pF and 60pF for high drive setting
A9588-01
EX_CLK
EX_ADDR
EX_DATA
EX_WR_N
(exp_mot_ds_n)
EX_RD_N
(exp_mot_rnw)
EX_DATA
EX_RD_N
(exp_mot_rnw)
Valid Address
Output Data
T5
1-16 Cycles
T4
1-4 Cycles
EX_CS_N
Tdspulse
Trecov
Tad2valcs
Tdval2valds
Input Data
Tdhold2afterds
T3
1-16 Cycles
T2
1-4 Cycles
T1
1-4 Cycles
EX_WR_N
(exp_mot_ds_n)
Trdsetup
Trdhold
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