Datasheet

Section 27 Electrical Characteristics
Rev. 3.00 Mar 21, 2006 page 775 of 788
REJ09B0300-0300
SDA0,
SDA1
V
IL
V
IH
t
BUF
P
*
P
*
S
*
t
STAH
t
SCLH
t
Sr
t
SCLL
t
SCL
t
Sf
t
SDAH
Sr
*
t
SDAS
t
STAS
t
SP
t
STOS
Note: * S, P, and Sr indicate the following conditions.
S:
P:
Sr:
Start condition
Stop condition
Retransmission start condition
SCL0,
SCL1
Figure 27.29 I
2
C Bus Interface Input/Output Timing
LCLK
LAD3 to LAD0,
SERIRQ, CLKRUN
(Transmit signal)
LAD3 to LAD0,
SERIRQ, CLKRUN
LFRAME
(Receive signal)
t
TXD
t
RXH
t
RXS
t
OFF
LAD3 to LAD0,
SERIRQ, CLKRUN
(Transmit signal)
t
Lcyc
t
LCKH
LCLK
t
LCKL
Figure 27.30 Host Interface (LPC) Timing