參數(shù)資料
型號(hào)： LZ85202
廠商： Sharp Corporation
英文描述： IrDA Control Host Controller with USB Interface(帶USB接口的IrDA控制主控制器)
中文描述： 紅外線控制主機(jī)控制器與USB接口（帶的USB接口的紅外線控制主控制器）
文件頁(yè)數(shù)： 13/48頁(yè)
文件大?。?/td> 219K
代理商： LZ85202
LZ85202
IrDA Control Host Controller with USB Interface User
’
s Guide
7
Binding Sequence
Binding is a communication initiation procedure where the Host device receives specific
information from the Peripheral and initiates data communication by allocating the Periph-
eral address (PADD). While bound, the Peripheral can be polled by the Host device and
can provide data to the Host device by responding to the poll. Figure 6 shows an actual
Bind sequence between the Host device and the Peripheral.
In Figure 6, numbers 1 through 7 illustrate the types of data packets for the Host and the
Peripheral. Explanation for the binding sequence is as described below.
1. Peripheral will send the Bind-Wakeup packet to the Host device to request the polling,
if the Host device does not give Bind-Hailing for a certain period of time (69 ms).
2. The Host device that received above request from the Peripheral will then send Bind-
Hailing packet so that it can communicate (or bind) with the Peripheral. At this time, the
Host device will tentatively assign Peripheral Address 0.
3. The Peripheral will then send Bind-Request to this Host device as a reply to the
Bind-Hailing.
4. The Host device will then acknowledge the Peripheral of Binding completion, with which
the Host device officially assigns the Peripheral Address (PADD).
5. Host device will start polling (IN).
6. The Peripheral will reply to this poll from the Host device with the data.
7. The Host device will return ACK as a confirmation of data receipt.
For the data communication, procedure 5, 6, and 7 will be repeated.
Figure 6. Binding Sequence
PADD: 0x0
HADD:
α
HostID
PADD: 0x0
HADD:
α
PFID, padd = 0xN
NOTES:
PADD: Peripheral Address
HADD: Host Address
PADD: 0xN
HADD:
α
DATA (ACK)
PADD: 0xN
HADD:
α
PADD: 0xF
HADD:
α
HostID
PADD: 0x0
HADD:
α
PFID
PADD: 0x0
HADD:
α
DATA
LZ85202-6
(1) BIND-WAKEUP
(2) BIND-HAILING
(3) BIND-REQUEST
(4) BIND-RESPONSE
HOST
PERIPHERAL
(5) IN
(6) DATA
(7) ACK (DATA)
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