Altera RapidIO II MegaCore Function - Manual (Page 178)

6–40 Chapter 6: Software Interface
Transport and Logical Layer Registers
RapidIO II MegaCore Function August 2014 Altera Corporation
User Guide
Input/Output Slave Interrupts
Table 6–60 and Table 6–61 describe the available Input/Output slave interrupts and
corresponding interrupt enable bits. These interrupt bits assert the io_s_mnt_irq
signal if the corresponding interrupt bit is enabled.
Table 6–59. Input/Output Slave Mapping Window n Control—Offset: 0x1040C, 0x1041C, 0x1042C, 0x1043C, 0x1044C,
0x1045C, 0x1046C, 0x1047C, 0x1048C, 0x1049C, 0x104AC, 0x104BC, 0x104CC, 0x104DC, 0x104EC, 0x104FC
Field Bits Access Function Default
LARGE_DESTINATION_ID
(MSB)
[31:24]
RO Reserved if the system does not support 16-bit device ID.
8'h0
RW
MSB of the Destination ID if the system supports 16-bit
device ID.
DESTINATION_ID [23:16] RW Destination ID 8'h0
RSRV [15:8] RO Reserved 8'h0
PRIORITY [7:6] RW
Request Packet’s priority 2’b11 is not a valid value for the
priority
field. Any attempt to write 2’b11 to this field is
overwritten with 2’b10.
2'h0
RSRV [5:3] RO Reserved 3'h0
CRF [2] RW Critical Request Flow bit 1'b0
SWRITE_ENABLE [1] RW
SWRITE enable. Set to one to generate SWRITE request
packets.
(1)
1'b0
NWRITE_R_ENABLE [0] RW NWRITE_R enable (1) 1'b0
Note to Table 6–59 :
(1) Bits 0 and 1 (NWRITE_R_ENABLE and SWRITE_ENABLE) are mutually exclusive. An attempt to write ones to both of these fields at the same time
is ignored, and that part of the register keeps its previous value.
Table 6–60. Input/Output Slave Interrupt—Offset: 0x10500 (Part 1 of 2)
Field Bits Access Function Default
RSRV [31:6] RO Reserved 26'h0
INVALID_READ_BURSTCOUNT [5] RW1C
Read burst count invalid. Asserted when
io_s_burstcount
has a value that is larger than 16 in
an Avalon-MM read request on the I/O Logical slave
interface. For information about valid values, refer to
Table 4–10 and Table 4–11 .
1'b0
INVALID_READ_BYTEENABLE [4] RW1C
Read byte enable invalid. Asserted when
io_s_byteenable
is set to an invalid value in an
Avalon-MM read request on the I/O Logical slave
interface. For information about valid values, refer to
Table 4–10 and Table 4–11 .
1'b0
INVALID_WRITE_BYTEENABLE [3] RW1C
Write byte enable invalid. Asserted when
io_s_byteenable
is set to an invalid value in an
Avalon-MM write request on the I/O Logical slave
interface. For information about valid values, refer to
Table 4–10 and Table 4–12 .
1'b0