A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 632 / 812
Timing for Master Transmit Data and Device Receive Data:
TdataTdataTc2c
Tf2dTd2r
TckhTckhTcklTcklTinhTinh
CLOCK
DATA
HOST_CLOCK
HOST_DATA
DEVICE_CLOCK
DEVICE_DATA
Timing for Master sending command then Device sending response
Host sends command to device
Device drive and sample data at rising edge of CLOCK. Master drive and sample data at falling edge
of CLOCK.
Time for Host inhibit clock for send data request
Data change to clock falling edge time during device to
host transfer
Clock rising edge to data change time during device to
host transfer
Data change to clock rising edge time during host to
device transfer
Clock falling edge to data change time during host to
device transfer
Host pull low Clock to Device drive Clock
To Next Page
Loading...