W6694 Datasheet, PDF (27/33 Pages) Winbond – USB Bus ISDN S/T-Controller

Preliminary W6694
EPCM Enable PCM Transmit/Receive
0: Disable data transmit/receive to/from PCM port. The frame synchronization clock is held
LOW. The bit synchronization clock is LOW if both PCM ports are disabled.
1: Enable data transmit/receive to/from PCM port. The frame synchronization clock is active.
The bit synchronization clock is active.
RS2-0 Receiver Select
These bits select the source where PCM1 channel will receive data from. Possible values are:
000 (0): receive from PCM1
001 (1): receive from PCM2
010 (2): receive from Layer1 B1
011 (3): receive from Layer1 B2
100 (4): receive from USB B1
101 (5): receive from USB B2
8.5.6 PCM2 Receiver Select Register
PCM2RS
Read/Write Address 13h
Value after reset: 00h
7
6
5
0
0
0
4
3
2
1
0
0
EPCM RS2
RS1
RS0
EPCM Enable PCM Transmit/Receive
0: Disable data transmit/receive to/from PCM port. The frame synchronization clock is held
LOW. The bit synchronization clock is held LOW if both PCM ports are disabled.
1: Enable data transmit/receive to/from PCM port. The frame synchronization clock is active.
The bit synchronization clock is active.
RS2-0 Receiver Select
These bits select the source where PCM2 channel will receive data from. Possible values are:
000 (0): receive from PCM1
001 (1): receive from PCM2
010 (2): receive from Layer1 B1
011 (3): receive from Layer1 B2
100 (4): receive from USB B1
101 (5): receive from USB B2
9. ELECTRICAL CHARACTERISTICS
9.1 Absolute Maximum Rating
PARAMETER
SYMBOL LIMIT VALUES
UNIT
Voltage on Any Pin with Respect to Ground
VS
-0.4 to VDD +0.4
V
Ambient Temperature Under Bias
Maximum Voltage on VDD
TA
0 to 70
°C
VDD
6
V
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
device.
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Publication Release Date: October 2000
Revision A1