Rainbow Electronics W90N745CDG - Manual (Page 21)

W90N745CD/W90N745CDG
- 16 -
Table 5.1 W90N745 Pins Description, continued
PIN NAME IO TYPE DESCRIPTION
I
2
C/USI
SCL0 /
SFRM /
TIMER0 /
GPIO [11]
IOU
I
2
C Serial Clock Line 0.
USI Serial Frame.
Timer0 time out output.
General Purpose In/Out port [11].
SDA0 /
SSPTXD /
TIMER1 /
GPIO [12]
IOU
I
2
C Serial Data Line 0
USI Serial Transmit Data
Timer1 time out output
General Purpose In/Out port [12]
SCL1 /
SCLK /
GPIO [13] /
KPROW [3]
IOU
I
2
C Serial Clock Line 1
USI Serial Clock
General Purpose In/Out port [13]
Keypad row scan output [3]
SDA1 /
SSPRXD /
GPIO [14] /
KPROW [2]
IDU
I
2
C Serial Data Line 1
USI Serial Receive Data
General Purpose In/Out port [14]
Keypad scan output [2]
UART0/UART1/UART2
TXD0 /
GPIO [5]
IOU
UART0 Transmit Data.
General Purpose In/Out [5]
RXD0 /
GPIO [6]
IOU
UART0 Receive Data.
General Purpose In/Out [6]
TXD1 /
GPIO [7]
IOU
UART1 Transmit Data.
General Purpose In/Out [7]
RXD1 /
GPIO [8]
IOU
UART1 Receive Data.
General Purpose In/Out [8]
CTS1/
TXD2(IrDA) /
PS2_CLK /
GPIO [9]
IOU
UART1 Clear To Send for Bluetooth application
UART2 Transmit Data supporting SIR IrDA.
PS2 Interface Clock Input/Output
General Purpose In/Out [9]
RTS1/
RXD2(IrDA) /
PS2_DATA /
GPIO [10]
IOU
UART1 Request To Send for Bluetooth application
UART2 Receive Data supporting SIR IrDA.
PS2 Interface Bi-Directional Data Line.
General Purpose In/Out [10]
XDMA
nXDREQ /
GPIO [19] /
IO
External DMA Request.
General Purpose In/Out [19]
nXDACK /
GPIO [18] /
IO
External DMA Acknowledgement.
General Purpose In/Out [18]