BCM4339XKWBGT Datasheet, PDF (162/183 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
SDIO High-Speed Mode Timing
SDIO high-speed mode timing is shown by the combination of Figure 44 and Table 53.
Figure 44: SDIO Bus Timing (High-Speed Mode)
50% VDD
SDIO_CLK
f_PP
t_WL
t_WH
Input
t_THL
t_ISU
t_TLH
t_IH
SDIO/gSPI Timing
Output
t_ODLY
t_OH
Table 53: SDIO Bus Timing^a Parameters (High-Speed 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
7
–
Clock high time
tWH
7
–
Clock rise time
tTLH
–
–
Clock fall time
tTHL
–
–
Inputs: CMD, DAT (referenced to CLK)
Input setup time
tISU
6
–
Input hold time
tIH
2
–
Outputs: CMD, DAT (referenced to CLK)
Output delay time – Data Transfer Mode
tODLY
–
–
Output hold time
tOH
2.5
–
Total system capacitance (each line)
CL
–
–
a. Timing is based on CL  40pF load on CMD and Data.
b. Min. (Vih) = 0.7 × VDDIO and max (Vil) = 0.2 × VDDIO.
Maximum Unit
50
MHz
400
kHz
–
ns
–
ns
3
ns
3
ns
–
ns
–
ns
14
ns
–
ns
40
pF
Broadcom^®
November 17, 2014 • 4339-DS106-R
Page 161