MEDIATEK Ralink MT7620 - Page 181

PGMT7620_V.1.0_040503
Page 181 of 523
MT7620 PROGRAMMING GUIDE
Integrated 802.11n MAC/BBP and 2.4 GHz RF/FEM Router-on-a-Chip
Bits
Type
Name
Description
Initial Value
25:24
RW
AG_QOS_TYPE
Agent QoS Type
0: Latency critical
1: Latency sensitive
2: Bandwidth sensitive (default)
3: Best Effort
0x2
23:16
RW
AG_DUEDATE
Due date for latency critical agent
(unit: system bus clock cycle
- system bus is 200 MHz or 120 MHz depending
on DRAM type.)
0x20
15:8
RW
AG_PIR
Peak Information Rate (PIR) for the Agent
The PIR is greater than or equal to the CIR.
Bandwidth which exceeds PIR is marked red.
0x00: 0 MB/s
0x01: 4 MB/s
…
0x80: 512 MB/s (default)
…
0xFF: 1020 MB/s (Max)
0x80
7:0
RW
AG_CIR
Committed Information Rate for the Agent
Bandwidth which falls below the CIR is marked
green. BW which exceeds the CIR but is below
the EIR is marked yellow.
0x00: 0 MB/s
0x01: 4 MB/s
…
0x20: 128 MB/s (default)
…
0xFF: 1020 MB/s (Max)
0x20
220. OCP_CFG0: OCP Configuration0 (offset: 0x0010)
Bits
Type
Name
Description
Initial Value
31:4
-
-
Reserved
-
3
RW
SYNC_METHOD
OCP Synchronization Command Method
0: All empty (Wait until all FIFOs are empty )
1: CMD empty (Wait until the CMD FIFO is
empty)
0x0
2
RW
OCP_SYNC_CMD
OCP Synchronization Command Method Enable
Remaps this RD CMD to address 0x0000_0000.
Initiate DRAM control before enabling this
option.
0: Disable
1: Enable
0x0
1
RW
RBUS_ASYNC
Async Mode for RBUS
0: Set HW to switch between sync or async
mode dynamically.
1: Force RBUS to A.sync mode.
0x0