
Preliminary Data Sheet
W6694 Passive USB-ISDN S/T-Controller
-23-
Publication Release Date: March., 2000
Revision 0.93
1
1
0
1
Output phase delay compensation 520 ns
Output phase delay compensation 1040 ns
8.2.5 Layer 1 Command/Indication Register
Value after reset: 0Fh
7
6
5
0
0
0
CIX3-0 Layer 1 Command Code
Value of the command code transmitted to layer 1. A read to this register returns the previous written value.
Note
: If S/T layer 1 function is disabled and GCI bus is enabled (GE=1 in GCR register), CIX register is used to issue layer 1
command code to U transceiver. In this case, the supported command code is:
Command
Symbol
Code
Descriptions
Activate request command
AR
1000
Activate request command
CIX
Read/Write Address 04h
4
0
3
2
1
0
CIX3
CIX2
CIX1
CIX0
8.2.6 U-layer1 Ready Code
Value after reset: 0Ch
7
6
0
0
RC3-0 Ready Code
When GCI bus is being enabled, these four programmable bits are allowed to program different Layer 1_Ready Code
(AI: Activation Indication) by user. For example: Siemens PEB2091: AI=1100, Motorola MC145572: AI=1100.
L1_RC
Read/Write Address 05h
5
0
4
0
3
2
1
0
RC3
RC2
RC1
RC0
8.3 GCI Mode Registers
8.3.1 GCI Mode Command Register
Value after reset: 00h
7
6
MAC
0
MAC
Monitor Transmit Channel Active (Read Only)
Data transmission is in progress in GCI mode Monitor channel.
0: The previous transmission has been terminated. Before starting a transmission, software should verify that the
transmitter is inactive.
GCR
Read/Write Address 06h
5
0
4
3
2
1
0
TLP
GRLP
SPU
PD
GE