ISP1362BDTM STEricsson, ISP1362BDTM Datasheet - Page 40

• Manufacturer Part Number: ISP1362BDTM
• Manufacturer: STEricsson

Specifications of ISP1362BDTM

• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Package Type: LQFP
• Rad Hardened: No
• Lead Free Status / RoHS Status: Compliant

ISP1362_7
Product data sheet
11.3 USB ports
11.4 Proprietary Transfer Descriptor (PTD)
10. Write 32-bit hexadecimal value 0000 0102h into either HcRhPortStatus[1] or
11. Read the HcRhPortStatus[1] and HcRhPortStatus[2] registers. Depending on which
SOF packets must be visible on DP and DM now.
The HcFmNumber register contains the current frame number, which is updated every
milliseconds.
Remark: The generation of SOF is completely performed by the ISP1362 hardware. In
this state of operation, if a PTD is written to the buffer memory, it will be processed and
sent.
The ISP1362 has two USB ports: port 1 and port 2. Port 1 can be configured as a
downstream port (host), an upstream port (device) or a dual-role port (OTG). Port 2 is a
fixed downstream port.
The function of port 1 depends on two input pins of the ISP1362, namely ID and
OTGMODE.
Table 8.
In OTG mode, port 2 operates as an internal host. It is not advisable to expose host port 2
to external devices because it will not respond to the SRP and HNP protocols. Besides,
the current capability of V
checklist states that one and only one USB mini-AB receptacle is allowed on an OTG
device.
PTD provides a communication channel between the HCD and the ISP1362 USB host
controller. A PTD consists of a PTD header and a payload data. The size of the PTD
header is 8 bytes, and it contains information required for data transfer, such as data
packet size, transfer status and transfer token types. Payload data to be transferred within
a particular frame must have a PTD as the header (see
The ISP1362 has three types of PTDs: control and bulk transfer (aperiodic transfer) PTD,
interrupt transfer PTD and Isochronous (ISO) transfer PTD.
In the control and bulk transfer PTD and the interrupt transfer PTD, the buffer area is
separated into equal sized blocks that are determined by HcATLBlkSize and
HcINTLBlkSize. For example, if the block size is defined as 32 bytes, the first PTD
OTGMODE
LOW
HIGH
HIGH
9. Read the HcRhPortStatus[1] and HcRhPortStatus[2] registers. The hexadecimal
value of one of the registers must change to 0001 0101h, indicating that a device
connection has been detected.
HcRhPortStatus[2], depending on the port that is being used.
port the USB device is connected to, one of the registers must contain hexadecimal
value 0001 0103h.
Port 1 function
Rev. 07 — 29 September 2009
BUS
may be different from the OTG port’s. The USB compliance
ID
X
LOW
HIGH
Single-chip USB OTG controller
Figure
Function of port 1
OTG
host
peripheral
22).
© ST-ERICSSON 2009. All rights reserved.
ISP1362
40 of 147