Rainbow Electronics W90N745CDG - Manual (Page 260)

W90N745CD/W90N745CDG
Publication Release Date: September 22, 2006
- 255 - Revision A2
FIFO Number : 16-byte receiving FIFO and 16 byte transmitting FIFO
Modem Function : N/A
Accessory Function : IrDA SIR (optional)
I/O Pin
: TXD2, RXD2.
I/O Pin Share with : UART1 (Bluetooth function)
• UART3
It is also merely a general purpose UART. It does not include any accessory function. It
share four I/O pins with AC97/I²S.
Clock Source : 15MHz
UART Type
: general UART
FIFO Number : 16-byte receiving FIFO and 16 byte transmitting FIFO
Modem Function : DTR, DSR
Accessory Function : N/A
I/O Pin : TXD3, RXD3, DTR, DSR
I/O Pin Share with : AC97_DATAO, AC97_DATAI, AC97_SYNC, AC97_BITCLK
Table 6.10.1 W90N745 UART features list
BLOCK
NUMBER
UART TYPE
CLOCK
SOURCE
MODEM
FUNCTION
SIGNALS
IO PINS DESIGN TARGET
0
General
UART
15M N/A
TxD0,
RXD0
General UART
1
High speed
UART
15M, 30M,
43.6M, 48M,
60M
CTS, RTS
TXD1,
RXD1,
CTS1,
RTS1
General UART/
Bluetooth
2
General
UART
15M N/A TX2, RX2
General UART/IrDA
SIR
3
General
UART
15M DTR, DSR
TXD3,
RXD3,
DRT3,
DSR3
General UART