Download Atheros AR9331

PRELIMINARY
6.19.24 Address at Endpointlist in Memory (ENEDPOINTLIST_ADDR)
Access: Read/Write
Reset Value: 0
Bit
Name
31:11
EPBASE
10:0
RES
Description
Endpoint list pointer (low)
These bits correspond to memory address signals [31:11], respectively. This field
references a list of up to 32 queue heads, i.e., one queue head per endpoint and
direction.
In device mode, this register contains the address of the top of the endpoint list in
system memory. Bits [10:0] of this register cannot be modified by the system
software and will always return a zero when read.The memory structure referenced
by this physical memory pointer is assumed 64-byte.
Reserved. Must be written to zero.
6.19.25 TT Status and Control (TTCTRL)
Offset: 0x1B00015C
Access: Read/Write (writes must be DWord)
Reset Value: 0
Bit
Name
31
RES
30:24
TTHA
23:0
RES
Description
Reserved. Must be written to zero.
Internal TT hub address representation
Used to match against the hub address field in queue head and SITD to determine
whether the packet is routed to the internal TT for directly attached FS/LS devices. If
the hub address in the queue head or SITD does not match this address, the packet is
broadcast on the high speed ports destined for a downstream high speed hub with
the address in the queue head or SITD.
This register contains parameters needed for internal TT operations. This register is
not used in the device controller operation.
Reserved. Must be written to zero.
6.19.26 Programmable Burst Size (BURSTSIZE)
Offset: 0x1B000160
Access: Read/Write (writes must be DWord)
Reset Value: 0
Bit
Name
31:16
RES
15:8
TXPBURST
Programmable Tx burst length
Represents the maximum length of the burst in 32-bit words while moving data from
system memory to the USB bus. The default is the constant VUSB_HS_TX_BURST.
7:0
RXPBURST
Programmable Rx burst length
Represents the maximum length of the burst in 32-bit words while moving data from
the USB bus to system memory. The default is the constant VUSB_HS_RX_BURST.
248
248
•
•
Description
Reserved. Must be written to zero.
AR9331 802.11n 1x1 2.4 GHz SoC for AP and Router Platforms
December 2010
Atheros Communications, Inc.
COMPANY CONFIDENTIAL