BCM43907 Preliminary Data Sheet
SDIO Interface Timing
Device Input Timing
SDIO device input timing in the SDR modes is shown by the combination of Figure 27 and Table 48.
Figure 27: SDIO Bus Input Timing (SDR Modes)
SDIO_CLK
tIS
tIH
CMD input
DAT[3:0] input
Table 48: SDIO Bus Input Timing Parameters (SDR Modes)
Symbol
Minimum
Maximum
Unit
ns
Comments
t
t
3.00
0.80
–
–
C
C
= 10 pF, VCT = 0.975V
= 5 pF, VCT = 0.975V
IS
IH
CARD
CARD
ns
Broadcom®
March 12, 2016 • 43907-DS104-R
Page 108
BROADCOM CONFIDENTIAL