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High Speed Inter-Chip USB 2.0 Hub and Flash Media Controller
Datasheet
Revision 1.0 (06-01-09) 26 SMSC USB4640/USB4640i
DATASHEET
8 SPI_CE_n SPI_CE_n 1 --
9 SPI_CLK / GPIO4 / SCL GPIO 0 --
10 SPI_DO / GPIO5 / SDA / SPI_SPD_SEL GPIO 0 --
11 SPI_DI SPI_DI IP PD
13 GPIO6 / SD_WP / MS_SCLK / xD_D4 GPIO 0 --
14 GPIO15 / SD_nCD GPIO
IP
PU
17 SD_D1 / MS_D5 / xD_D3 none Z --
18 SD_D0 / MS_D4 / xD_D2 none Z --
19 SD_D7 / MS_D6 / xD_D1 none
Z
--
20 SD_D6 / MS_D7 / xD_D0 none Z --
21 SD_CLK / MS_BS / xD_nWP none Z --
22 xD_nWE xD_nWE Z --
23 SD_D5 / MS_D1 / xD_ALE none Z --
24 SD_CMD / MS_D0 / xD_CLE none Z --
26 xD_nCE xD_nCE Z --
27 xD_nRE xD_nRE Z --
28 xD_nB/R xD_nB/R Z --
29 GPIO14 / xD_nCD GPIO
IP
PU
30 SD_D4 / MS_D2 / xD_D7 none Z --
31 GPIO12 / MS_INS GPIO IP
PU
32 SD_D3 / MS_D3 / xD_D6 none
Z
--
33 SD_D2 / xD_D5 none Z --
35 GPIO10 (CRD_PWR) GPIO Z
--
36 GPIO2 / RXD GPIO
0--
37 GPIO1 / LED / TXD GPIO
0--
38 nRESET nRESET
IP --
39 HSIC_IMP HSIC_IMP
Z--
40 TEST TEST
IP PD
Table 7.2 USB4640/USB4640i Reset States Table (continued)
RESET STATE
PIN PIN NAME FUNCTION
INPUT/
OUTPUT
PU/
PD