LSI Logic Confidential
AC Timing
18-27
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
18.2.6 IDC Interface Timing
IDC Interface timing is divided into the following two groups:
•
IDC Slave Timing. See
and
•
IDC Master Timing. See
and
Figure 18.22 IDC Interface AC Slave Timing
T
START
SIO_SCL (I)
SIO_SDA (I/O)
T
HD(O)
T
STOP
Data In
Data Out
T
SU(I)
T
HIGH
T
LOW
T
HD(I)
T
CYC
T
VALID(O)
Table 18.17 IDC Interface Slave Timing Parameter
Param
Description
IDC Design Values (in sysclk cycles)
Min
Max
T
HIGH
High period of SIO_SCL(I)
M{(S+1)(R+1), 3}
------
T
LOW
Low period of SIO_SCL(I)
M{(S+1)(F+1), 2}
------
T
CYC
Clock period of SIO_SCL(I)
M{(S+1)[(R+1)+(F+1)], 4}
------