8189ETVRTL8189ETV 查看數據表（PDF） - Realtek Semiconductor
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8189ETVRTL8189ETV Datasheet PDF : 23 Pages
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Clock
Input
Output
fPP
TWL
TWH
TISU
TIH
8189ETVRTL8189ETV
Datasheet
TODLY
NO
fPP
Clock frequency
TWL Clock low time
TWH Clock high time
TISU Input setup time
TIH Input hold time
TODLY Output delay time
Figure 3. SDIO Interface Timing
Table 13. SDIO Interface Timing Parameters
Parameter
Mode
Default
HS
DEF
HS
DEF
HS
DEF
HS
DEF
HS
DEF
HS
MIN
0
0
10
7
10
7
5
6
5
2
MAX
25
50
14
14
Unit
MHz
MHz
ns
ns
ns
ns
ns
ns
SDIO/ GSPI Interface Signal Level
The SDIO and GSPI signal level ranges from 1.8V to 3.3V. The host shall provide the power source with
targeting power level to RTL8189ETV SDIO and GSPI interface via VIO_UART pin (pin # 50).
The DC characteristics of typical signal level, 3.3V/ 2.8V/ 1.8V are shown in section 6.3.2.
SDIO Interface Power On Sequence
After power on, the SDIO interface is selected by RTL8189ETV automatically when a valid SDIO
command is received. To attain better SDIO host compatibility, the following power on sequence is
recommended:
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller 14
with SDIO Interface
Track ID: JATR-2265-11 Rev. 0.7
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