BCM4339XKWBGT Datasheet, PDF (160/183 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac MAC/Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver

BCM4339 Preliminary Data Sheet
Interface Timing and AC Characteristics
Section 20: Interface Timing and AC
Characteristics
SDIO/gSPI Timing
SDIO Default Mode Timing
SDIO default mode timing is shown by the combination of Figure 43 and Table 52.
Figure 43: SDIO Bus Timing (Default Mode)
f_PP
t_WL
t_WH
SDIO_CLK
Input
t_THL
t_TLH
t_ISU
t_IH
Output
t_ODLY
(max)
t_ODLY
(min)
Table 52: SDIO Bus Timing^a Parameters (Default Mode)
Parameter
Symbol Minimum Typical
SDIO CLK (All values are referred to minimum VIH and maximum VIL^b)
Frequency – Data Transfer mode
fPP
0
–
Frequency – Identification mode
fOD
0
–
Clock low time
tWL
10
–
Clock high time
tWH
10
–
Clock rise time
tTLH
–
–
Clock fall time
tTHL
–
–
Inputs: CMD, DAT (referenced to CLK)
Maximum Unit
25
MHz
400
kHz
–
ns
–
ns
10
ns
10
ns
Broadcom^®
November 17, 2014 • 4339-DS106-R
Page 159