W6694 Datasheet, PDF (22/33 Pages) Winbond – USB Bus ISDN S/T-Controller

Preliminary W6694
8.2.5 Layer 1 Command/Indication Register CIX
Value after reset: 0Fh
7
6
5
0
0
0
4
3
2
0
CIX3 CIX2
Read/Write Address 04h
1
CIX1
0
CIX0
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
Activate Request Command
Symbol
AR
Code
1000
Descriptions
Activate request command
8.2.6 U-layer1 Ready Code
Value after reset: 0Ch
7
6
5
0
0
0
L1_RC Read/Write Address 05h
4
3
2
1
0
0
RC3
RC2
RC1
RC0
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.
8.3 GCI Mode Registers
8.3.1 GCI Mode Command Register
GCR
Read/Write Address 06h
Value after reset: 00h
7
6
5
MAC
0
0
4
3
2
1
0
TLP GRLP SPU
PD
GE
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.
1: The previous transmission is in progress.
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