FM336Plus
V.34/Group 3 High Performance Fax Modem Family
/RTS
XTLI
Crystal
XTL0
/CTS
TXD
OR
TDCLK
CLKIN
Oscillator
XTCLK
/RLSD
RXD
V.24
Interface
RIN
telephone
/RDCLK
/DTR
TXA1
TXA2
line
TIP
Line
Interface
RING
/DSR**
/RI*
OH
RINGD
/TALK
FM336Plus
Modem Family
/RD
EYEXY
EYESYNC
EYECLK
/WR
/CS
Optional
Eye Pattern
Generator
D7:0
Host
RS4:0
Processor
IRQ
/RESET
TXRQ*
Speaker
Amplifier
SPKR
RXRQ**
+5V
+3.3V
Power Supply
AGND
DGND
*
Selectable; TXRQ output replaces /RI output.
** Selectable; RXRQ output replaces /DSR output.
Figure 1. Functional Interface Signals
8
Conexant
101361A