W90N745CD Datasheet, PDF (20/422 Pages) Winbond – 16/32-bit ARM microcontroller

W90N745CD/W90N745CDG
Table 5.1 W90N745 Pins Description, continued
PIN NAME
IO TYPE
AC97/I²S/PWM/UART3
AC97_nRESET /
I²S_MCLK /
GPIO [0] /
IOU
nIRQ [2] /
USB_PWREN
AC97_DATAI /
I²S_DATAI /
PWM [0] /
IOU
DTR3 /
GPIO [1]
AC97_DATAO /
I²S_DATAO /
PWM [1] /
IOU
DSR3 /
GPIO [2]
AC97_SYNC /
I²S_LRCLK /
PWM [2] /
IOU
TXD3 /
GPIO [3]
AC97_BITCLK /
I²S_BITCLK /
PWM [3] /
IOS
RXD3 /
GPIO [4]
USB Interface
DP0
IO
DN0
IO
DP1
IO
DN1
IO
Miscellaneous
nIRQ [1:0] /
GPIO [17:16] /
IOU
USB_OVRCUR
nWDOG /
GPIO [15] /
IOU
USB_PWREN
TEST
IDS
DESCRIPTION
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 CODEC Host Interface Data Input.
I²S CODEC Host Interface Data Input.
PWM Channel 0 output.
Data Terminal Ready for UART3.
General Purpose In /Out port [1]
AC97 CODEC Host Interface Data Output.
I²S CODEC Host Interface Data Output.
PWM Channel 1 output.
Data Set Ready for UART3.
General Purpose In/Out port [2]
AC97 CODEC Host Interface Synchronous Pulse Output.
I²S CODEC Host Interface Left/Right Channel Select Clock.
PWM Channel 2 output.
Transmit Data for UART3.
General Purpose In/Out port [3]
AC97 CODEC Host Interface Bit Clock Input.
I²S CODEC Host Interface Bit Clock.
PWM Channel 3 output.
Receive Data for UART3.
General Purpose In/Out port [4].
Differential Positive USB IO signal
Differential Negative USB IO signal
Differential Positive USB IO signal
Differential Negative USB IO signal
External Interrupt Request
General Purpose I/O
nIRQ1 is used as USB host over-current detection input
Watchdog Timer Timeout Flag and Keypad 3-keys reset output, active low
General Purpose In/output
USB host power switch enable output
This test pin must be short to ground or left unconnected
Publication Release Date: September 22, 2006
- 15 -
Revision A2