gwixp465bad ETC-unknow, gwixp465bad Datasheet - Page 128

• Manufacturer Part Number: gwixp465bad
• Description: Network Proc 1.3v/1.4v/2.5v/3.3v 400mhz 544-pin Bga
• Manufacturer: ETC-unknow

Table 67.
Intel
Datasheet
128
®
IXP45X and Intel
Intel Simplex Mode Values
Symbol
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
T
T
T
dholdafterwr
dval2valwrt
addr2valcs
T
T
T
T
wrpulse
rdsetup
®
rdhold
recov
IXP46X Product Line of Network Processors
EX_ALE is not valid in simplex mode of operation.
Setting the address phase parameter (T1) will adjust the duration that the address appears to the
external device.
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.
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.
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.
Setting the recovery phase parameter (T5) will adjust the duration between successive accesses on
the expansion interface.
T is the period of the clock measured in ns.
Clock to output delay for all signals will be a maximum of 15 ns for devices requiring operation in
synchronous mode.
Timing was designed for a system load between 5pF and 60pF for high drive setting
Parameter
Valid address to valid chip select
Write data valid prior to EXPB_IO_WRITE_N falling edge
Pulse width of the EXP_IO_WRITE_N
Valid data after the rising edge of EXPB_IO_WRITE_N
Data valid required before the rising edge of
EXP_IO_READ_N
Data hold required after the rising edge of
EXP_IO_READ_N
Time required between successive accesses on the
expansion interface.
Intel
®
IXP45X and Intel
®
IXP46X Product Line of Network Processors—Datasheet
Document Number:
Min.
14.7
1
1
1
1
2
1
Max.
16
16
4
4
4
Units
Cycles
Cycles
Cycles
Cycles
Cycles
ns
ns
306261-004US
August 2006
Notes
1, 2,
3,
4,
5,
6
7
7
7
7