WL1801MOD_15 Datasheet, PDF (22/42 Pages) Texas Instruments – WL18xxMOD WiLink™ 8 Single-Band Combo Module –Wi-Fi®, Bluetooth®, and Bluetooth Low Energy (BLE)

WL1801MOD, WL1805MOD, WL1831MOD, WL1835MOD
SWRS152K – JULY 2013 – REVISED NOVEMBER 2014
www.ti.com
5.12.6.2 SDIO Switching Characteristics – High Rate
Figure 5-8 and Figure 5-9 show the parameters for maximum clock frequency.
V_DD
Clock Input
V_SS
V_DD
Data Input
V_SS
t_WL
t_WH
V_IH
V_IL
t_THL
V_IH
V_IH
V_IL
50% V_DD
t_TLH
t_ISU
t_IH
Not Valid
V_IH
V_IH
Valid
V_IL
V_IL
Not Valid
Figure 5-8. SDIO HS Input Timing
V_DD
Clock Input
V_SS
t_THL
t_WL
t_WH
V_IH
50% V_DD
V_IH
V_IH
50% V_DD
V_IL
V_IL
t_TLH
V_DD
Data Output
V_SS
t_ODLY(max)
Not Valid
V_OH
V_OH
Valid
V_OL
V_OL
t_OH(min)
Not Valid
Figure 5-9. SDIO HS Output Timing
Table 5-2 lists the SDIO high-rate timing characteristics.
f_clock
DC
t_TLH
t_THL
t_ISU
t_IH
t_ODLY
C_l
Table 5-2. SDIO HS Timing Characteristics
PARAMETER
MIN
Clock frequency, CLK
0.0
Low, high duty cycle
40.0
Rise time, CLK
Fall time, CLK
Setup time, input valid before CLK ↑
3.0
Hold time, input valid after CLK ↑
2.0
Delay time, CLK ↑ to output valid
7.0
Capacitive load on outputs
MAX
52.0
60.0
3.0
3.0
10.0
10.0
UNIT
MHz
%
ns
ns
ns
ns
ns
pF
5.12.7 HCI UART Shared Transport Layers for All Functional Blocks (Except WLAN)
The device incorporates a UART module dedicated to the Bluetooth shared-transport, host controller interface
(HCI) transport layer. The HCI interface transports commands, events, and ACL between the Bluetooth device
and its host using HCI data packets acting as a shared transport for all functional blocks except WLAN.
space
WLAN
WLAN HS SDIO
SHARED HCI FOR ALL FUNCTIONAL BLOCKS EXCEPT WLAN BLUETOOTH VOICE-AUDIO
Over UART
Bluetooth PCM
22
Specifications
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