LG KE990 Service Manual - Page 70

USB interface, 11.8 MMC interface

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3. TECHNICAL BRIEF 3.11.7 USB interface ZR3453X is a USB 2.0 Device or On-the-Go dual-role device (OTG) with the following characteristics: • Complies with USB (Universal Serial Bus) 2.0 specifications • Complies with On-the-Go Supplement 1.0a • Integrated 45-ohm termination, 1.5Kilohm pull-up and 15-Kilohm pull-down resistors. • Supports 480-Mbps high-speed, 12-Mbps full-speed and 1.5Mbps low-speed (Host mode only) data transmission rates. • Control + 4 endpoints: - EP0 - two-way Control - 2-input , 2-output - Bulk, INT or ISO • Suspend, resume, reset and SOF signaling UDP P3 UDN P4 J4 R335 0 UVBUS P6 UID M7 URSET MMP_USB_D+ MMP_USB_DVREG_5V AGND_USBT AGND_USBC F12 AGND_VDAC R340 3.3K L5 K5 3.4K 1% +VPWR USB_SELECT_N 100K R345 C336 0.01u MSM_USB_DMMP_USB_D- FSUSB30UMX U304 10 SEL HSD1+ 1 9 2 VCC HSD2+ 8 _OE 3 D+ 7 4 HSD1- GND 6 HSD2- D- 5 MSM_USB_D+ MMP_USB_D+ USB_D+ USB_D- 3.11.8 MMC interface Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes - 71 - LGE Internal Use Only

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- 71 -
3. TECHNICAL BRIEF
3.11.7 USB interface
ZR3453X is a USB 2.0 Device or On-the-Go dual-role device (OTG) with the following characteristics:
• Complies with USB (Universal Serial Bus) 2.0 specifications
• Complies with On-the-Go Supplement 1.0a
• Integrated 45-ohm termination, 1.5Kilohm pull-up and 15-Kilohm pull-down resistors.
• Supports 480-Mbps high-speed, 12-Mbps full-speed and 1.5Mbps low-speed (Host mode only) data
transmission rates.
• Control + 4 endpoints:
- EP0 - two-way Control
- 2-input , 2-output - Bulk, INT or ISO
• Suspend, resume, reset and SOF signaling
3.11.8 MMC interface
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
1%
3.4K
0
R335
HSD2-
10
SEL
VCC
9
_OE
8
U304
FSUSB30UMX
3
D+
5
D-
4
GND
HSD1+
1
HSD1-
7
HSD2+
2
6
C336
0.01u
R345
100K
P4
UDN
UDP
P3
UID
P6
M7
URSET
UVBUS
J4
AGND_USBC
L5
AGND_USBT
K5
AGND_VDAC
F12
3.3K
R340
+VPWR
USB_SELECT_N
MSM_USB_D-
MMP_USB_D-
USB_D+
USB_D-
MSM_USB_D+
MMP_USB_D+
MMP_USB_D+
MMP_USB_D-
VREG_5V