cx28394 Conexant Systems, Inc., cx28394 Datasheet - Page 154

• Manufacturer Part Number: cx28394
• Description: Quad/x16/octal-t1/e1/j1 Framers
• Manufacturer: Conexant Systems, Inc.

3.0 Registers
3.7 Primary Control and Status Registers
TFSYNC_IO
TMSYNC_IO
Table 3-9. System Bus Sync Mode Summary
Table 3-10. Common TFSYNC and TMSYNC Configurations
3-32
Transmit framer disabled.
(TABORT = 1)
Transmit framer enabled to
search TPCMI for
embedded framing.
(EMBED = 0, TABORT = 0)
Transmit framer enabled to
search TNRZ (after TSLIP
buffer) for embedded
framing. (EMBED = 1,
TABORT = 0)
IN-GND
FSYNC
OUT
OUT
IN
IN
IN
Conditions
Bidirectional TFSYNC Input/Output Mode—TFSYNC_IO programming is dependent on
transmit framer and system bus modes as shown in
Bidirectional TMSYNC Input/Output mode—TMSYNC_IO programming is dependent on
transmit framer and system bus modes as shown in
0 = TFSYNC input
1 = TFSYNC output
0 = TMSYNC input
1 = TMSYNC output
MSYNC
IN-GND
OUT
OUT
OUT
IN
IN
TFSYNC
IN-GND
OUT
OUT
OUT
OUT
IN
IN
IN
SBI supplies multiframe and 8 kHz frame alignment. FSYNC must be aligned with
MSYNC if both are provided.
SBI supplies 8 kHz frame alignment. Multiframe alignment is arbitrary and MSYNC is
unused.
SBI supplies 8 kHz frame alignment. Multiframe alignment is supplied by the framer.
Framer supplies multiframe alignment. FSYNC is unused.
SBI supplies multiframe and frame alignment.
Framer supplies frame and multiframe alignment.
TMSYNC
IN-GND
IN-GND
OUT
OUT
OUT
IN
IN
IN
Conexant
TSB timebase slaved to system bus TFSYNC or TMSYNC.
TSB timebase slaved to system bus TMSYNC. TFSYNC is unused.
TSB timebase slaved to system bus TFSYNC. TMSYNC is unused
and multiframe alignment is arbitrary.
SB timebase slaved to system bus TFSYNC. TMSYNC alignment is
arbitrary.
TSB timebase alignment is arbitrary.
TSB timebase slaved to system bus TMSYNC. TFSYNC aligns to
TMSYNC input.
TSB timebase is aligned to embedded framing on TPCMI. TPCMI
must be configured to line rate for this case.
TSB timebase is aligned to embedded framing on TNRZ data.
TMSYNC is unused. TPCMI may be configured for 1,544 kbps or a
multiple of 2,048 kbps.
SBI Alignment Mode
Tables 3-9
Tables 3-9
Explanation
Quad/x16/Octal—T1/E1/J1 Framers
and 3-10.
and 3-10.
CX28394/28395/28398
100054E