LH7A404 데이터 시트보기 (PDF) - NXP Semiconductors.
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LH7A404 Datasheet PDF : 75 Pages
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LH7A404
NXP Semiconductors
32-Bit System-on-Chip
Table 2. LH7A404 Functional Pin List (Cont’d)
LFBGA
SIGNAL
DESCRIPTION
RESET
STATE
U7
PH7/
nPCSTATRE
• GPIO Port H7
• Status Read Enable for PC Card (PCMCIA or
CompactFlash) in Single or Dual Card mode
T4
LCDFP/LCDSPS
• LCD Frame Pulse
• ALI Reset Row Driver Counter
PHx: Input
LOW
V2
U3
V3
U4
W1
V4
W2
V5
Y1
W3
U8
V8
T8
W9
Y8
V9
Y10
U17
U20
U19
W19
W20
V19
V20
T17
V17
D11
A10
C11
C10
B9
D10
C9
LCDLP/
LCDHRLP
LCDCLS
LCDSPL
LCDUBL
LCDSPR
LCDLBR
LCDMOD
LCDPS
LCDVDDEN
LCDREV
LCDCLKIN
LCDVD0
LCDVD1
LCDVD2
LCDVD3
LCDENAB/
LCDM
LCDDCLK
USBDCP
USBDP
USBDN
USBHDP0
USBHDN0
USBHDP1
USBHDN1
USBHPWR
nUSBHOVRCURR
nPWME0
nPWME1
PWM0
PWM1
PWM2
PWM3
PWMSYNC
• LCD Linepulse
• ALI Latch Pulse
ALI Clock for Row Drivers
ALI Start Pulse Left for reverse scanning
ALI Up, Down signal for reverse scanning
ALI Start Pulse Right for normal scanning
ALI Output for reverse scanning
ALI MOD Signal used by the row driver
ALI Power Save
ALI Power Sequence Control
ALI Reverse
External Clock Input for LCD controller
LCD Video Data Interface
• LCD TFT Data Enable
• LCD STN AC Bias
LCD Pixel Clock
USB Device Full Speed Pull-up Resistor Control
USB Device Data Positive (Differential Pair)
USB Device Data Negative (Differential Pair)
USB Data Host Positive 0 (Differential Pair)
USB Data Host Negative 0 (Differential Pair)
USB Data Host Positive 1 (Differential Pair)
USB Data Host Negative 1 (Differential Pair)
USB Host Power; This pin is connected to the remote
USB Host Power Switch’s Enable pin. In response to
a fault condition, signalled on the nUSBHOVRCURR
pin, the LH7A404 can assert this pin, which causes
the power switch shut down.
USB Host Overcurrent; The overcurrent input is used
to indicate to the host a fault has occurred, resulting in
current limiting. The LH7A404 can be programmed to
cause the remote power switch to shut off by assert-
ing USBHPWR in response to an nUSBHOVRCURR
assertion.
DC-DC Converter 0 PWM 0 Enable
DC-DC Converter 1 PWM 1 Enable
DC-DC Converter 0 Output (Pulse Width Modulated)
DC-DC Converter 1 Output (Pulse Width Modulated)
PWM Output 2
PWM Output 3
PWM Synchronizing Input for PWM2
LOW
LOW
LOW
LOW
LOW
HIGH
LOW
HIGH
LOW
HIGH
Input
LOW
LOW
LOW
Input
Input
Input
Input
Input
Input
Input
LOW
Input
Input
Input
LOW
LOW
LOW
LOW
Input
STANDBY
STATE
OUTPUT
DRIVE
I/O
NOTES
No Change 8 mA I/O
LOW if not in
ALI mode
12 mA
O
LOW if not in
ALI mode
12 mA
O
No Change 12 mA O
No Change 12 mA O
No Change 12 mA O
No Change 12 mA O
No Change 12 mA O
No Change 12 mA O
No Change 12 mA O
No Change 12 mA O
No Change 12 mA O
No Change
I
LOW
12 mA O
LOW
LOW
Input
Input
Input
HIGH
LOW
Input
Input
12 mA O
12 mA O
12 mA I
12 mA I/O
12 mA I/O
12 mA I/O
12 mA I/O
12 mA I/O
12 mA I/O
No Change 12 mA O
Input
12 mA I
Input
Input
Input
Input
No Change
No Change
No Change
8 mA I/O
8 mA I/O
8 mA I/O
8 mA I/O
8 mA O
O
8 mA I
10
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