w6692 Winbond Electronics Corp America, w6692 Datasheet - Page 46

• Manufacturer Part Number: w6692
• Description: Pci Bus Isdn S/t-controller
• Manufacturer: Winbond Electronics Corp America

4
GCI slave mode: connects to U transceiver such as PEB 2091, CH0 used only.
GCI master mode: connects to PSB 2165 ARCOFI, uses B1, B2, IC1 and IC2 for voice communication, uses MON1 for
programming, uses C/I1 for pins SA-SD access.
The GCI signals are:
DD/DU
DCL
FSC
7.8.1 GCI Mode C/I0 Channel Handling
the GCI bus interface.
accessed via register CIR (in receive direction, layer 1 to layer 2) and register CIX (in transmit direction, layer 2 to layer 1). The
C/I code is 4-bit long.
7.8.2 GCI Mode Monitor Channel Handling
devices. The Monitor channel is necessary for:
th
The Command/Indication channel 0 carries real-time status information between the W6692 and another device connected to
The Monitor channel protocol is a handshake protocol used for high speed information exchange between the W6692 and other
B1
One C/I0 channel conveys the commands and indications between a layer 1 device and layer 2 device. This C/I0 channel is
Octet
In the receive direction, the code from layer 1 is continuously monitored, with an interrupt being generated anytime a
change occurs. A new code must be found in two consecutive GCI frames to be consided valid and to trigger a C/I code
change interrupt status (double last look criterion).
In the transmit direction, the code written in CIX is continuously transmitted in the channel.
B1
1
st
B2
: 768 Kbps
: 8 KHz
Octet
: 1.536 MHz
CH0
MON0
D
C/I0
B2
IC1
IC2
-46 -
CH1
MON1
2
FIG 7.8 GCI MODE CHANNEL STRUCTURE
nd
Monitor
Octet
C/I1
W6692 PCI ISDN S/T-Controller
Publication Release Date:
D
Preliminary Data Sheet
C/I
CH2
MR
Sep 30, 1999
MX
Revision 0.9
C/I2
3
rd
Octet