Si4702/03-D30
Rev. 0.6 7
Figure 2. Reset Timing Parameters for Busmode Select Method 2 (GPIO3 = 1)
Table 5. Reset Timing Characteristics (Busmode Select Method 2)
1,2,3
Parameter Symbol Test Condition Min Typ Max Unit
GPIO1 and GPIO3 Setup to RST
t
SRST2
GPIO3 = 1 30 — — ns
GPIO1 and GPIO3 Hold from R
ST t
HRST2
30 — — ns
Notes:
1.
When selecting 2-wire Mode, the user must ensure that a 2-wire start condition (falling edge of SDIO while SCLK is
high) does not occur within 300 ns before the rising edge of RST
.
2. 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
.
3. When selecting 2-wire mode, the user must ensure that SCLK is high during the rising edge of RST, and stays high until
after the 1st start condition.
70%
30%
t
SRST2
RST
t
HRST2
GPIO3
70%
30%
GPIO1
70%
30%
