GCIXP1250BA 837411 Intel, GCIXP1250BA 837411 Datasheet - Page 132

• Manufacturer Part Number: GCIXP1250BA 837411
• Manufacturer: Intel

Specifications of GCIXP1250BA 837411

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Intel
4.3.8.6
132
Figure 71. SRAM SlowPort Read
®
IXP1250 Network Processor
SRAM Bus - Slow-Port Device Signal Protocol and Timing
SRAM SlowPort Chip select
Externally Generated Signal
signal - MCE_L & address
SRAM_SLOWPORT_CONFIG
Example for the following setting in SRAM registers
SRAM_SLOW_CONFIG
31:24
09
31:16
Cycle Count =
RES
SLOW_EN_L
HIGH_EN_L
LOW_EN_L
23:16
0A
SLOW_RD_L/SLOW_WE_L Assert. (9)
DQ[31:0]
MRD_L
FWE_L
MCE_L
A[18:0]
SCLK
SLOW__EN_L Assert (10)
15:8
15:8
0x0B
05
2
SLOW_RD_L/SLOW_WE_L Deassert. (5)
1
0x0B
7:0
03
7:0
BootROM Cycle Count (Does not apply to SRAM SlowPort)
SLOW__EN_L Deassert. (3)
0
SRAM Slow Port Cycle Count (11)
Cycle time = Cycle Count + 1 (12 cycles)
11
BootROM Cycle Count (11)
10
MCE_L/SLOW_EN_L Assert. (10)
9
SLOW_RD_L Assert. (9)
8
7
Valid CE
Valid Address
6
Valid
5
4
SLOW_RD_L Deassert. (5)
3
SLOW_EN_L Deassert. (3)
2
1
0
Datasheet
11
A8618-01
10
9