IXP2400 Intel, IXP2400 Datasheet - Page 120

• Manufacturer Part Number: IXP2400
• Manufacturer: Intel

Specifications of IXP2400

• Operating Supply Voltage (typ): 1.3/1.5/2.5/3.3V
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

Intel
120
Figure 41. Mode 0 Single Read Transfer for Self-Timing Device — SlowPort
Table 60. SlowPort Read Timing
®
P_CLK
SP_RD_L
SP_ALE_L
SP_CS_L[1:0]
SP_WR_L
SP_A[1:0]
SP_AD[7:0]
SP_ACK_L
SP_CLK
IXP2400 Network Processor
1. The hold cycle can be programmed by SP_RTC1 and SP_RTC2 registers.
2. The hold cycle can be programmed by SP_RTC1 and SP_RTC2 registers.
3. The pulse width depends on the pulse-width parameter set in the SP_RTC1 and SP_RTC2 registers and the clock di-
SP_AD[1:0]
SP_AD[7:0]
SP_AD[7:0]
input from
t
SP_CS[0]
SP_CS[1]
External
SP_ACK
output to
SP_ALE
CO_rise
Signals
SP_WR
external
external
visor as well. The minimum is 20 ns for one clock cycle at 50 MHz.
SP_RD
device
device
0
t
CO_fall
(default) (ns)
t
Max
co
8.5
8.4
8.4
9.1
8.4
9.0
—
—
tco rise
2
9:2
Min
5.3
5.3
5.3
5.4
5.3
5.5
—
—
17:10
4
Max
9.0
9.0
9.0
9.2
9.0
9.2
—
—
(default)
24:18
tco fall
(ns)
t
t
t
h
co
t
doz
co
Min
5.4
5.4
5.4
7.2
5.4
5.6
—
—
6
Max
9.2
—
—
—
—
—
1
0
0
8
(ns)
t
th
co
Min
5.5
—
—
—
—
—
0
0
2
t
su
10
Max
6.8
7.2
—
—
—
—
—
—
(ns)
t
tsu
su
D[7:0]
12
Min
4.5
4.6
—
—
—
—
—
—
t
h
t
h
Max
t
—
—
—
—
—
—
—
co
3
14
tpw
t
h
Min
—
—
—
—
—
—
—
t
4
dzo
t
co
16
9:2
7.8
—
—
—
—
—
—
toz/zo
17:10
6.0
—
—
—
—
—
—
18
24:18
Datasheet
D[7:0]
20