LSISASX12 LSI, LSISASX12 Datasheet - Page 36

• Manufacturer Part Number: LSISASX12
• Manufacturer: LSI

Specifications of LSISASX12

• Lead Free Status / Rohs Status: Not Compliant

2-14
Table 2.4
are:
Functional Description
Copyright © 2004, 2005 by LSI Logic Corporation. All rights reserved.
StartByteEnable[7:0] specifies the active HIGH byte enables for the
first register write operation, which targets the registers located at
address StartAdr and StartAdr+4. StartByteEnables[3:0] apply to the
register at StartAdr. StartByteEnables[7:4] apply to the register at
StartAdr+4. This allows for double dword, dword, and byte granularity
on the first register write operation. All register writes in between the
first and last writes assume a byte enable of 0xFF.
EndByteEnable[7:0] specifies the active HIGH byte enables for the
last register write operation. EndByteEnable[3:0] apply to the register
located at EndAdr. EndByteEnables[7:4] apply to the register located
at EndAdr+4, where EndAdr = StartAdr + [(N-1)
double dword and byte granularity on the last register write
operation.
WriteData[3] corresponds to bits [31:24] of the dword to be written
to address StartAdr, while WriteData[0] corresponds to bits [7:0] of
the dword to be written to address StartAdr. WriteData[7]
corresponds to bits [31:24] of the dword to be written to address
StartAdr+4, while WriteData[4] corresponds to bits [7:0] of the dword
to be written to address StartAdr+4.
If N is not 0x00, and is less than or equal to 127, the Function Result
is set to 0x00 to indicate SMP FUNCTION ACCEPTED.
If N=0, the Function Result is set to 0x02 to indicate SMP
FUNCTION FAILED.
If N > 127, and the frame size is less than 259 dwords, the Function
Result is set to SMP FUNCTION FAILED.
If N > 127 and the frame size is 259 dwords or more, the link layer
sends a BREAK sequence, and no SMP Response frame is sent.
If 0 < N <128 and the size of the Request Frame is not (N
dwords, the function result is set to 0xh03 (INVALID REQUEST
FRAME LENGTH) and no registers are written.
shows the response frame format. The response conditions
8]. This allows for
2) + 3