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)： 39/48頁(yè)
文件大?。?/td> 219K
代理商： LZ85202
LZ85202
IrDA Control Host Controller with USB Interface User
’
s Guide
33
PLL (Phase Lock Loop) and CG (Clock Generator)
The internal PLL generates the master oscillation for the HC from the external 12 MHz
crystal connected to the CI pin and CO pin. The generated signal supplies the clock signals
required for the internal functions of the HC.
In addition, when the RESET signal is asserted to the HC, clock signals will be supplied to
the internal circuit after the PLL counts 65535 clock cycles.
USB (Universal Serial Bus)
The USB block is a USB device controller for devices that support the full speed of
12 Mbps. Endpoints and the maximum packet size (FIFO size) are described in Table 17.
Figure 17. HC Recommended Oscillation Circuit
CI
CO
LZ85202-22
22 pF
12 MHz
100 k
22 pF
NOTE:
Characteristic evaluation of each crystal oscillator
is recommended. Crystal oscillator, capacitor, and
resistor should be mounted close to the LSI.
Table 17. USB Maximum Packet Sizes
ITEM
DESCRIPTION
I/O
MAXIMUM
PACKET SIZE
8 bytes
8 bytes
64 bytes
64 bytes
8 bytes
Endpoint0
:Control
Out
In
In
Out
In
Endpoint1
Endpoint2
Endpoint3
:Bulk/Interrupt
:Bulk/Interrupt
:Bulk/Interrupt
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