參數(shù)資料
型號(hào)： ML60851D
廠商： OKI SEMICONDUCTOR CO., LTD.
英文描述： USB Device Controller
中文描述： USB設(shè)備控制器
文件頁(yè)數(shù)： 15/82頁(yè)
文件大?。?/td> 705K
代理商： ML60851D
PEDL60851D-01
1
Semiconductor
ML60851D
15/82
End Point Packet Ready Register (PKTRDY)
This register indicates whether or not the preparations for reading out or writing in a packet data have been
completed. In addition, this register is also used for controlling the handshake packet (ACK/NAK)
Read address
Write address
C8h
48h
D7
0
0
D6
0
0
D5
0
0
D4
0
0
D3
0
0
0
D2
0
0
D1
0
0
D0
0
0
After a hardware reset
After a bus reset
Definition
This is the register for indicating that the local MCU can request a read/write of the FIFO for each EP. The logical
sums (AND) of each of these bits and the corresponding bits of INTENBL become the bits of INTSTAT.
The ML60851D asserts a receive packet ready bit (set to “0”) and generates an interrupt cause. The local MCU
resets the receive packet ready bit after completion of the interrupt servicing (such as taking out data from the
corresponding receive FIFO, etc.,).
The ML60851D deasserts a transmit packet ready bit and generates an interrupt cause. The local MCU sets the
receive packet ready bit after completion of the interrupt servicing (such as writing data in the corresponding
transmit FIFO, etc.,).
The bit D3 is fixed at “0”, and even if a “1” is written in this bit, that write operation will be invalid.
The operations of the different bits of PKTRDY are described in detail below.
EP0 Receive packet ready (R/Reset)
EP1 Receive packet ready (R/Reset)
EP2 Receive packet ready (R/Reset)
EP0 Transmit packet ready (R/Set)
EP1 Transmit packet ready (R/Set)
EP2 Transmit packet ready (R/Set)
EP3 Transmit packet ready (R/Set)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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