参数资料
型号: M66596WG
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PBGA64
封装: 0.80 MM PITCH, FBGA-64
文件页数: 129/133页
文件大小: 1611K
代理商: M66596WG
M66596FP/WG
rev .1.00
2006.3.14
page 93 of 127
3.9.2
DATA-PID
Because High-Bandwidth transfers are not supported, In the Peripheral mode, the DATA-PID added with the
USB 2.0 standard is supported as indicated below.
(1) IN direction:
(a) DATA0: Sent as data packet PID
(b) DATA1: Not sent
(c)
DATA2: Not sent
(d) mDATA: Not sent
(2) OUT direction(when using Full-Speed operation):
(a) DATA0: Received normally as data packet PID
(b) DATA1: Received normally as data packet PID
(c)
DATA2: Packet is ignored
(d) mDATA: Packet is ignored
(3) OUT direction(when using Hi-Speed operation):
(a) DATA0: Received normally as data packet PID
(b) DATA1: Received normally as data packet PID
(c)
DATA2: Received normally as data packet PID
(d) mDATA: Received normally as data packet PID
3.9.3
Interval counter
3.9.3.1 An overview of operation
The isochronous interval can be set using the IITV bit of the PIPEPERI register. In the Peripheral mode, interval
counter is used for the function of a table. In the Host mode, the transmitting timing of a token is generated.
Table 3.26 The function of an interval counter in the Peripheral mode
Direction
Function
Detection conditions
IN
IN buffer flush
When a token cannot be normally received in the
interval frame during an isochronous IN transfer
OUT
Notification of a token not being received
When a token cannot be normally received in the
interval frame during an isochronous OUT transfer
The interval count is carried out when an SOF is received or for interpolated SOFs, so the isochronism can be
maintained even if an SOF is damaged. The frame interval that can be set is 2IITV(u) frames.
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