Data Sheet

Si4702/03-C19
8 Rev. 1.1
Figure 3. 3-Wire Control Interface Write Timing Parameters
Table 6. 3-Wire Control Interface Characteristics
(V
D
= V
A
= 2.7 to 5.5 V, V
IO
= 1.5 to 3.6 V, T
A
= –20 to 85 °C)
Parameter Symbol Test Condition Min Typ Max Unit
SCLK Frequency f
CLK
0—2.5MHz
SCLK High Time t
HIGH
25 — — ns
SCLK Low Time t
LOW
25 — — ns
SDIO Input, SEN
to SCLKSetup t
S
20 — — ns
SDIO Input to SCLKHold t
HSDIO
10 — — ns
SEN
Input to SCLKHold t
HSEN1
10 — — ns
SEN
Input to SCLKHold t
HSEN2
10 — — ns
SCLKto SDIO Output Valid t
CDV
Read 2 — 25 ns
SCLKto SDIO Output High Z t
CDZ
Read 2 — 25 ns
Note: When selecting 3-wire Mode, the user must ensure that a rising edge of SCLK does not occur within 300 ns before the
rising edge of RST
.
SCLK
70%
30%
SEN
70%
30%
SDIO
A7 A0
70%
30%
t
S
t
S
t
HSDIO
t
HSEN1
A6-A5,
R/W,
A4-A1
Address In Data In
D15 D14-D1 D0
t
HIGH
t
LOW
t
HSEN2