BCM43455XKUBGT Datasheet, PDF (140/159 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac MAC/Baseband/ Radio with Integrated Bluetooth 4.1 and FM Receiver

BCM43455 Preliminary Data Sheet
Interface Timing and AC Characteristics
Section 20: Interface Timing and AC
Characteristics
SDIO Timing
SDIO Default Mode Timing
SDIO default mode timing is shown by the combination of Figure 34 and Table 53.
Figure 34: SDIO Bus Timing (Default Mode)
f_PP
t_WL
t_WH
SDIO_CLK
Input
t_THL
t_ISU
t_TLH
t_IH
Output
t_ODLY
(max)
t_ODLY
(min)
Table 53: 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 low time
tTHL
–
–
Maximum Unit
25
MHz
400
kHz
–
ns
–
ns
10
ns
10
ns
Broadcom^®
November 5, 2015 • 43455-DS109-R
BROADCOM CONFIDENTIAL
Page 139