MEDIATEK Ralink MT7620 - Page 355

PGMT7620_V.1.0_040503
Page 355 of 523
MT7620 PROGRAMMING GUIDE
Integrated 802.11n MAC/BBP and 2.4 GHz RF/FEM Router-on-a-Chip
2.21.1 Block Diagram
2.21.1.1 Host bridge with PCIe Slot
AP Mode (as a standalone SoC)
MIPS
DRAM
PDMA
PDMA
802.11n
MAC
802.11n
BBP
802.11n RF
PSE
Host-
PCI
Bridge
P2P
Bridge
RGMIIx2
GEx2
PCIe
Link
TG2RBus
BAR1
BAR0
RBus
PBus
CSR
CSR
GE PHYx2
Host
Dev
PIO
PCIe WiFi
iNIC
GSW
BUS0
2.4 GHz
FEx4
EPHYx5
4FE+2GE
or
5FE+1GE
5 GHz
External 5 GHz data stream
Internal 2.4 GHz data stream
PDMA
CSR
Disabled in AP mode
Figure 2-33 PCIe AP Mode