Hayes Microcomputer Products RCV56HCF - Manual (Page 37)

RCV56HCF PCI/CardBus Modem Designer’s Guide
1129 ROCKWELL PROPRIETARY INFORMATION 3-15
Table 3-4. MDP Pin Signal Definitions
Label I/O Type Signal/Definition
OVERHEAD SIGNALS
XTLI I Crystal Int. Connect the BIF MODEMCLK pin through a 33
Ω
resistor.
XTLO O Crystal Out. Leave open.
VDD,
AVDD
PWR Digital Power Supply. To +3.3V and digital circuits power supply filter.
AVAA PWR Analog Power Supply. To +3.3V and analog circuits power supply filter.
GND GND Digital Ground. Connect to digital ground.
AGND GND Analog Ground. Connect to analog ground.
SET3V# IA Set 3.3V Analog Reference. Connect to digital ground.
BIF TO MDP INTERFACE
RS0–RS4 IA Address Lines 0-4. Connect to the BIF DA0–DA4 pins, respectively.
D0-D7 IA/OA Data Line 0-7. Connect to the BIF DD0-DD7 pins, respectively.
READ# IA Read Enable. Connect to BIF DRD# pin.
WRITE# IA Write Enable. Connect to BIF DWR# pin.
RESET1#,
RESET2#
IA External Device Active Low Reset. Connect to the BIF DRESET# pin.
WKRES# OA Wakeup Reset. Active low wake-up output. Connect to the BIF WKRES# pin.
CS# IA Chip Select. CS# output low selects the MDP. Connect to the BIIF MODEM_CS# pin.
IRQ OA Interrupt Request. MODEM_IRQ is the active low interrupt request from the MDP. Connect to the BIF
MODEM_IRQ pin.
M_TXCLK OA Modem Transmit Clock. Connect to BIF M_TXCLK pin.
M_TX IA Modem Transmit Data. Connect to BIF M_TX pin.
M_RXCLK OA Modem Receive Clock. Connect to BIF M_RXCLK pin.
M_RX OA Modem Receive Data. Connect to BIF M_RX pin.
SI_FRAME IA/OB ISDN Frame. 8 kHz frame sync; rising edge starts frame. Connect to BIF SI_FRAME pin.
SI_CLK IA/OB ISDN Clock. 1.536 MHz clock. Connect to BIF SI_CLK pin.
SI_DD OA ISDN Data Downstream. Connect to BIF SI_DD pin.
SI_DU IA ISDN Data Upstream. Connect to BIF SI_DU pin.
MDP TO SIEMENS PSB2186 S/T INTERFACE
IOM_FRAME IA/OB ISDN Frame Synchronization Clock. 8 kHz frame sync; rising edge starts frame. The start of the B1
channel in time-slot 0 is marked. Connect to the ISDN device FSC pin.
IOM_CLK IA/OB ISDN Clock. 1.536 MHz clock. Connect to the ISDN device DCL pin.
IOM_DD IA ISDN Data Downstream. IOM data input synchronous to IOM_CLK. Connect to the ISDN device DOUT pin.
IOM_DU OA ISDN Data Upstream. IOM data output synchronous to IOM_CLK. Connect to the ISDN device DIN pin.
MDP TO SIEMENS PSB21910 U INTERFACE
IOM_FRAME IA/OB ISDN Frame Synchronization Clock. 8 kHz frame sync; rising edge starts frame. The start of the B1
channel in time-slot 0 is marked. Connect to the ISDN device FSC pin.
IOM_CLK IA/OB ISDN Clock. 1.536 MHz clock. Connect to the ISDN device DCL pin.
IOM_DD IA ISDN Data Downstream. IOM data input synchronous to IOM_CLK. Connect to the ISDN device DOUT pin.
IOM_DU OA ISDN Data Upstream. IOM data output synchronous to IOM_CLK. Connect to the ISDN device DIN pin.