Lattice Semiconductor
Detailed Register Descriptions (Continued)
(0x)
CSIX-to-PI40 IP Core User’s Guide
Absolute
Reset Value
Address
Bit
Name
(0x)
Description
Protection Control Channel xx (Read/Write), xx = [0, 1]
8014 - 0
8018 - 1
[0:4]
[5]
Not Used
PSW_ SELECT_xx
00
Not Used
This bit does the selection of which fabric to receive data from
for channel xx. (0 use fabric 0, 1 use fabric 1)
[6]
[7]
PSW_ ID_1_xx
PSW_ ID_0_xx
This bit is the source for bit PSW_ID in the PI40 cell overhead
(byte 1 bit 6 of FIPI cell format) sent to fabric 1 for channel xx.
This bit is the source for bit PSW_ID in the PI40 cell overhead
(byte 1 bit 6 of FIPI cell format) sent to fabric 0 for channel xx.
In_Data_Lo_Watermark_xx (Read/Write), xx = [0, 1]
8040 - 1
[0:7]
IBD_LOW_WMARK_xx
08
Channel xx, low watermark for inbound data FIFO. This value
8080 - 1
represents the number of FIFO words (4 bytes) that assert the
FIFO low watermark. When the number of words in the FIFO
exceeds this value, the FIFO’s frame available signal asserts.
In_Cntrl_Lo_Watermark_xx Read/Write), xx = [0, 1]
8044 - 0
[0:7]
IBC_LOW_WMARK_xx
08
Channel xx, low watermark for inbound control FIFO. This
8084 - 1
value represents the number of FIFO words (4 bytes) that
assert the FIFO low watermark. When the number of words in
the FIFO exceeds this value, the FIFO’s frame available signal
asserts.
In_Data_Hi_Watermark_xx (Read/Write), xx = [0, 1]
8048 - 0
[0:7]
IBD_HI_WMARK_xx
3f
Channel xx, high watermark for inbound data FIFO. This value
8088 - 1
represents the number of FIFO words (4 bytes) that assert the
FIFO high watermark. When the number of words in the FIFO
exceeds this value, the FIFO’s partial_full signal asserts.
In_Cntrl_Hi_Watermark_xx (Read/Write), xx = [0, 1]
804C - 0
[0:7]
IBC_HI_WMARK_xx
3f
Channel xx, high watermark for inbound control FIFO. This
808C - 1
value represents the number of FIFO words (4 bytes) that
assert the FIFO high watermark. When the number of words
in the FIFO exceeds this value, the FIFO’s partial_full signal
asserts.
Out_Data_Lo_Watermark_xx (Read/Write), xx = [0, 1]
8050 - 1
[0:7]
OBD_LOW_WMARK_xx
08
Channel xx, low watermark for outbound data FIFO. This
8090 - 1
value represents the number of FIFO words (4 bytes) that
assert the FIFO low watermark. When the number of words in
the FIFO exceeds this value, the FIFO’s frame available signal
asserts.
Out_Cntrl_Lo_Watermark_xx (Read/Write), xx = [0, 1]
8054 - 0
[0:7]
OBC_LOW_WMARK_xx
08
Channel xx, low watermark for outbound control FIFO. This
8094 - 1
value represents the number of FIFO words (4 bytes) that
assert the FIFO low watermark. When the number of words in
the FIFO exceeds this value, the FIFO’s frame available signal
asserts.
Out_Data_Hi_Watermark_xx (Read/Write), xx = [0, 1]
8058 - 0
[0:7]
OBD_HI_WMARK_xx
3f
Channel xx, high watermark for outbound data FIFO. This
8098 - 1
value represents the number of FIFO words (4 bytes) that
assert the FIFO high watermark. When the number of words
in the FIFO exceeds this value, the FIFO’s partial_full signal
asserts.
14
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