ARM AMBA NIC-301 - Manual (Page 43)

Programmers Model
ARM DDI 0397G Copyright © 2006-2010 ARM. All rights reserved. 3-5
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Table 3-2 shows the registers that exist for each IB.
0x044 - 0x0FC - - - - Reserved.
0x100 RW 4 0 read_qos Read channel QoS value.
0x104 RW 4 0 write_qos Write channel quality value.
0x108 RW 2 0 fn_mod_iss Issuing functionality modification register. This register sets the block
issuing capability to one outstanding transaction. You can configure the
register bits as follows:
0
Read issuing,
read_iss_override
.
1 Write issuing, write_iss_override .
0x10C - 0xFFC - - - - Reserved.
a. The reset value is initialized to the tidemark value that you set in the configuration GUI in AMBA Designer (ADR-301).
Table 3-1 Registers for each ASIB (continued)
Address
offset
Type Width
Reset
value
Name Description
Table 3-2 Registers for each IB
Address
offset
Type Width
Reset
value
Name Description
0x000 - - - - Reserved.
0x004
- - - - Reserved.
0x008 RW 2 0 fn_mod_bm_iss Bus matrix issuing functionality modification register. This register is
only present if the block is connected directly to a switch.
This register sets the issuing capability of the preceding switch
arbitration scheme to 1. You can configure the register bits as follows:
0
Read issuing, read_iss_override .
1 Write issuing, write_iss_override .
0x00C - - - - Reserved.
0x020
RW 3 4
Sync_mode
This register is only available if you have a FIFO for all channels. You
can configure the register bits for the following clock domain
boundaries:
0
sync 1:1.
1 sync n:1.
2 sync 1:n.
3 sync m:n.
4 async.
5 reserved.
6 reserved.
7 reserved.
0x024
RW 1 0
fn_mod2
Bypass merge. This register is only present if upsizing or downsizing.
See Upsizing data width function on page 2-12, Downsizing data width
function on page 2-14, and Bypass merge on page 2-13.
0x028
-
0x03C
- - - - Reserved.
0x040 RW 4 a wr_tidemark Value, only with a FIFO for the WFIFO channel.