Rainbow Electronics W90P710CDG - Manual (Page 22)

W90P710CD/W90P710CDG
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Table 5.1 W90P710 Pins Description (Continued)
Pin Name
IO
Type
Description
AC97/I2S/PWM/UART3
AC97_nRESET /
I2S_MCLK /
GPIO [0] /
nIRQ4 /
USB_PWREN
IOU
AC97 CODEC Host Interface RESET Output.
I2S CODEC Host Interface System Clock Output.
General Purpose In/Out port [0]
External interrupt request.
USB host power enable output
AC97_DATAI /
I2S_DATAI /
PWM [0] /
DTR4 /
GPIO [1]
IOU
AC97 CODEC Host Interface Data Input.
I2S CODEC Host Interface Data Input.
PWM Channel 0 Output.
Data Terminal Ready for UART4.
General Purpose In /Out port [1]
AC97_DATAO /
I2S_DATAO /
PWM [1] /
DSR4 /
GPIO [2]
IOU
AC97 CODEC Host Interface Data Output.
I2S CODEC Host Interface Data Output.
PWM Channel 1 Output.
Data Set Ready for UART4.
General Purpose In/Out port [2]
AC97_SYNC /
I2S_LRCLK /
PWM [2] /
TXD4 /
GPIO [3]
IOU
AC97 CODEC Host Interface Synchronous Pulse Output.
I2S CODEC Host Interface Left/Right Channel Select Clock.
PWM Channel 2 Output.
Transmit Data for UART4.
General Purpose In/Out port [3]
AC97_BITCLK /
I2S_BITCLK /
PWM [3] /
RXD4 /
GPIO [4]
IOS
AC97 CODEC Host Interface Bit Clock Input.
I2S CODEC Host Interface Bit Clock.
PWM Channel 3 Output.
Receive Data for UART4.
General Purpose In/Out port [4].
USB Interface
DP0
IO Differential Positive USB IO signal
DN0 IO Differential Negative USB IO signal
DP1 IO Differential Positive USB IO signal
DN1 IO Differential Negative USB IO signal
Miscellaneous
nIRQ [3:2] /
GPIO [19:18]
IOU
External Interrupt Request
General Purpose I/O.
nIRQ [1:0] /
GPIO [17:16]
USB_OVRCUR
IOU
External Interrupt Request
General Purpose I/O
nIRQ1 is used as USB host over-current detection input
nWDOG /
GPIO [15] /
USB_PWREN
IOU
Watchdog Timer Timeout Flag and Keypad 3-keys reset output, active low
General Purpose In/output
USB host power switch enable output
RTCVDD P RTC independent battery power (1.8V)