MEDIATEK Ralink MT7620 - Register Descriptions ( Base: 0 X 1000_0400)

PGMT7620_V.1.0_040503
Page 180 of 523
MT7620 PROGRAMMING GUIDE
Integrated 802.11n MAC/BBP and 2.4 GHz RF/FEM Router-on-a-Chip
2.16.4 Register Descriptions (base: 0x1000_0400)
218. DMA_ARB_CFG: (offset: 0x0000)
Bits
Type
Name
Description
Initial Value
31:27
-
-
Reserved
0x0
26
RW
PREEMPT_EN
Preemption Enable
Request preemption, higher priority requestor
may change current request transaction
0: Disable Preemption
1: Enable Preemption
0x1
25
RW
TRTC_EN
Two Rate Three Color Bandwidth (TRTC) Meter
Enable
0: Disable TRTC
1: Enable TRTC
0x0
24
RW
CLASS_EN
QoS Classifier Enable
0: Disable CLASS
1: Enable CLASS
TRTC (0)
TRTC (1)
CLASS (0)
Round Robin
BW RR
CLASS (1)
Fixed Priority
QoS Arb
0x0
23:0
RW
CLS_PRIORITY
Class Priority
This field is used for class priority for second
arbitration.
{BEy(3’d7), LCg(3’d6), BSy(3’d5), LSy(3’d4), BEg
(3’d3), BSg (3’d2), LSg(3’d1), LCgd(3’d0)}
0xfac688
219. DMA_AG_BW: (offset: 0x0004)
Bits
Type
Name
Description
Initial Value
31
WO
AG_WR
Agent Write
0: Read
1: Write
0x0
30:28
RW
AG_NUM
DMA Agent Select
Selects a DMA agent to configure.
0: SDHC
1: GDMA
2: PPE
3: GSW PDMA
4: WPDMA
5: PCIe
6: Reserved
7: USB
0x0
27:26
-
-
Reserved
0x0