Serial RapidIO (SRIO) User's Guide

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5.36 LSU n Control Register 3 (LSU n_REG3)
SRIO Registers
There are four of these registers, one for each LSU (see Table 93 ). LSU n_REG3 is shown in Figure 97
and described in Table 94 . For additional programming see Section 2.3.3 .
Table 93. LSU n_REG3 Registers and the Associated LSUs
Register Address Offset Associated LSU
LSU1_REG3 040Ch LSU1
LSU2_REG3 042Ch LSU2
LSU3_REG3 044Ch LSU3
LSU4_REG3 046Ch LSU4
Figure 97. LSU n Control Register 3 (LSU n_REG3)
31 16
Reserved
R-0000h
15 12 11 0
Reserved BYTE_COUNT
R-0h R/W-000h
LEGEND: R/W = Read/Write; R = Read only; - n = Value after reset
Table 94. LSU n Control Register 3 (LSU n_REG3) Field Descriptions
Bit Field Value Description
31–12 Reserved 00000h These read-only bits return 0s when read.
11–0 BYTE_COUNT 000h–FFFh Number of data bytes to read or write, up to 4K bytes. This value is used in
conjunction with the specified RapidIO address to create the data size and word
pointer fields in the RapidIO packet header.
Serial RapidIO (SRIO)158 SPRUE13A – September 2006
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