USB2244 Standard Microsystems Corp., USB2244 Datasheet - Page 14

• Manufacturer Part Number: USB2244
• Description: Usb2244/usb2244i Ultra Fast Usb 2.0 Sd/mmc Flash Media Controller
• Manufacturer: Standard Microsystems Corp.

Revision 1.0 (05-27-08)
6.1
PIN
17:15
30
25
23
20
10
11
19
26
24
27
29
31
21
28
18
12
35
33
32
8
7
5
4
9
1
2
3
36-Pin Reset States
GPIO10(CARD_PWR)
GPIO2 / RXD / SDA
GPIO15 (SD_nCD)
GPIO7 / TXD / SCK
XTAL1 (CLKIN)
GPIO1 (LED1)
PIN NAME
SD_CMD
SD_CLK
nRESET
SD_WP
GPIO14
GPIO12
SD_D6
SD_D7
SD_D0
SD_D1
SD_D2
SD_D3
SD_D4
SD_D5
GPIO4
RBIAS
XTAL2
USB+
TEST
USB-
NC
NC
Table 6.1 USB2244/USB2244i Pin Reset States
FUNCTION
nRESET
SD_WP
GPIO1
USB+
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
TEST
USB-
none
none
none
none
none
none
none
none
none
none
none
none
DATASHEET
RESET STATE
14
OUT-
PUT
0
0
0
0
0
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
z
PU/
PD
pu
pu
pu
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
Ultra Fast USB 2.0 SD/MMC Flash Media Controller
PUT
yes
yes
yes
yes
yes
IN-
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
FUNCTION
SD_CMD
SD_CLK
SD_WP
SD_D6
SD_D7
SD_D0
SD_D1
SD_D2
SD_D3
SD_D4
SD_D5
PWR
RXD
none
none
TXD
Post-Reset State
SD Mode
OUT-
VDD
PUT
(fw)
hw
hw
hw
hw
hw
hw
hw
hw
hw
hw
hw
SMSC USB2244/USB2244i
z
z
z
PU/
(fw)
PD
pu
pu
pu
pu
pu
pu
pu
pu
pu
pu
--
--
--
--
--
PUT
(fw)
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
IN-
--
--
--
--
Datasheet