GCIXP1240AC Intel, GCIXP1240AC Datasheet - Page 11

• Manufacturer Part Number: GCIXP1240AC
• Description: IC MPU NETWORK 232MHZ 432-BGA
• Manufacturer: Intel

Specifications of GCIXP1240AC

• Rohs Status: RoHS non-compliant
• Processor Type: Network
• Features: 32-bit StrongARM RISC Core
• Speed: 232MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 432-BGA
• Mounting: Surface Mount
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant
• Other names: 837152

Errata
1.
Problem:
Implication:
Workaround:
Status:
2.
Problem:
Implication:
Workaround:
Status:
3.
Problem:
Implication:
Workaround:
Status:
Specification Update
SRAM Registers
Reads of the SRAM_BOOT_CONFIG and SRAM_SLOWPORT_CONFIG registers return the
two inner bytes out of order.
SRAM_BOOT_CONFIG:
Written as: BRWA BCEA BRWD BCED
Read as:
SRAM_SLOWPORT_CONFIG:
Written as: SRWA SCEA SRWD SCED
Read as:
Bytes are read out of order.
Software that reads these registers needs to put the bytes in the correct order.
NoFix
CSR Access Using PCI Memory Cycles
The 128 byte window size is not supported. All other window sizes are valid. The
CSR_BASE_ADDR_MASK[18] may only be set to 1, preventing the 128 byte window size from
being selected. All other sizes are supported.
A 128 byte window size is not valid.
Use a different PCI window size.
NoFix
PCI_DMA Instruction
The Microengine PCI_DMA instruction SDRAM address operand is misaligned.
Incorrect addressing occurs if the address operand is not shifted.
The SDRAM address operand of the PCI_DMA instruction requires a 1-bit right shift for proper
quadword addressing. For example, the address of a Descriptor Pointer located at SDRAM address
0x1000 should be right-shifted 1 bit with the resulting operand value being 0x0800, as follows:
NoFix
BRWA BRWD BCEA BCED
SRWA SRWD SCEA SCED
; fix address of SDRAM Descriptor Pointer
immed[tmp1, 0x1000]
alu[DESC_ADDR,--,B,tmp1,>>1]
; issue DMA request
pci_dma[DESC_ADDR, 0, any_queue]
Intel
®
IXP1240 Network Processor
Errata
11