at91sam9g35-cu ATMEL Corporation, at91sam9g35-cu Datasheet - Page 21

• Manufacturer Part Number: at91sam9g35-cu
• Description: At91sam Arm-based Embedded Mpu
• Manufacturer: ATMEL Corporation

6.6
Table 6-3.
6.7
11053AS–ATARM–27-Jul-11
Masters
Slaves
0
1
2
3
4
5
6
7
8
9
USB Device High Speed DPR
Master to Slave Access
USB Host OHCI registers
USB
USB Host EHCI registers
External Bus Interface
Peripheral Bridge 0
Peripheral Bridge 1
Internal SRAM
Internal ROM
DDR2 Port 1
DDR2 Port 2
DDR2 Port 3
SAM9G35 Master to Slave Access
SMD
All the Masters can normally access all the Slaves. However, some paths do not make sense,
for example allowing access from the USB Device High speed DMA to the Internal Peripherals.
Thus, these paths are forbidden or simply not wired, and shown as “-” in the following table.
The SAM9G35 features the following USB communication ports:
The High Speed USB Host Port A is shared with the High Speed USB Device port and con-
nected to the second UTMI transceiver. The selection between Host Port A and USB Device is
controlled by the UDPHS enable bit (EN_UDPHS) located in the UDPHS_CTRL control register.
• 2 Hosts (A and B) High Speed (EHCI) and Full Speed (OHCI)
• 1 Host (C) Full Speed only (OHCI)
• 1 Device High Speed
0
ARM926
Instr.
X
X
X
X
X
X
X
X
-
-
1
ARM926
Data
X
X
X
X
X
X
X
X
-
-
2&3
DMA 0
Transceiver
X
X
X
X
X
X
-
-
-
-
FS
PC
4&5
DMA 1
HS USB Host
HS EHCI
FS OHCI
X
X
X
X
X
X
X
-
-
-
Transceiver
DMA
PB
HS
6
USB Device
HS DMA
PA
0
X
X
-
-
-
-
-
-
-
-
Transceiver
HS
Device
USB
DMA
HS
7
USB Host
HS EHCI
1
X
X
-
-
-
-
-
-
-
-
EN_UDPHS
8
USB Host
HS OHCI
X
X
-
-
-
-
-
-
-
-
9
LCD DMA
SAM9G35
X
X
X
-
-
-
-
-
-
-
10
EMAC
DMA
X
X
-
-
-
-
-
-
-
-
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