GCIXP1240AB 837151 Intel, GCIXP1240AB 837151 Datasheet - Page 129
GCIXP1240AB 837151
Manufacturer Part Number
GCIXP1240AB 837151
Description
Manufacturer
Intel
Datasheet
1.GCIXP1240AB_837151.pdf
(146 pages)
Specifications of GCIXP1240AB 837151
Lead Free Status / Rohs Status
Not Compliant
- Current page: 129 of 146
- Download datasheet (2Mb)
4.3.8.4
4.3.8.5
Datasheet
Figure 68. BootROM Read
SRAM Bus - BootROM and SlowPort Timings
Timing for the BootROM and SlowPort areas are programmable through the SRAM configuration
registers described in the IXP1200 Network Processor Family Microcode Programmer’s Reference
Manual. The designer should refer to this manual to understand restrictions in selecting timing
values. Each timing illustration shows the appropriate register settings to generate the timing
shown.
SRAM Bus - BootRom Signal Protocol and Timing
Boot ROM Chip select signal
Externally Generated Signal
SLOW_EN_L & CE_L<3:0>
Example for the following setting in SRAM registers
SRAM_SLOW_CONFIG
SRAM_BOOT_CONFIG
31:24
09
31:16
Cycle Count =
SLOW_EN_L
RES
LOW_EN_L
CH_L<3:0>
23:16
DQ<31:0>
05
SLOW_RD_L/SLOW_WE_L Assert. (9)
A<18:0>
MRD_L
FWE_L
SCLK
SLOW_RD_L/SLOW_WE_L Deassert. (5)
15:8
15:8
0x0B
0A
2
SLOW__EN_L Assert (10)
1
0x0B
7:0
7:0
03
BootROM Cycle Count (11)
Cycle time = Cycle Count + 1 (12 cycles)
SLOW__EN_L Deassert. (3)
0
SRAM SlowPort Cycle Count (Does not apply to BootROM)
11
BootROM Cycle Count (11)
10
SLOW_EN_L Assert. (10)
9
SLOW_RD_L Assert. (9)
8
7
Valid CE
Valid Address
6
Intel
Valid
Valid CE
5
®
IXP1240 Network Processor
4
SLOW_RD_L Deassert. (5)
3
SLOW_EN_L Deassert. (3)
2
1
0
11
A8615-01
10
9
129
Related parts for GCIXP1240AB 837151
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC MPU NETWORK 200MHZ 432-BGA
Manufacturer:
Intel
Datasheet:
Part Number:
Description:
Microprocessor: Intel Celeron M Processor 320 and Ultra Low Voltage Intel Celeron M Processor at 600MHz
Manufacturer:
Intel Corporation
Part Number:
Description:
Intel 82550 Fast Ethernet Multifunction PCI/CardBus Controller
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 120 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 120 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 64 Mbit. Access speed 150 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel StrataFlash memory 32 Mbit. Access speed 100 ns
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
DA28F640J5A-1505 Volt Intel StrataFlash Memory
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
5 Volt Intel StrataFlash?? Memory
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
5 Volt Intel StrataFlash?? Memory
Manufacturer:
Intel Corporation
Part Number:
Description:
Intel 6300ESB I/O Controller Hub
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel 82801DB I/O Controller Hub (ICH4), Pb-Free SLI
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel 82801FB I/O Controller Hub (ICH6)
Manufacturer:
Intel Corporation
Datasheet:
Part Number:
Description:
Intel Strataflash Memory28F128J3 28F640J3 28F320J3
Manufacturer:
Intel Corporation
Datasheet: