CX28394/28395/28398
3.0 Registers
Quad/x16/Octal—T1/E1/J1 Framers
3.7 Primary Control and Status Registers
Table 3-11. Common RFSYNC and RMSYNC Configurations
Conditions
RFSYNC
RMSYNC
Explanation
Thru = 0 [RSIG_CR;
addr 0D7]
IN
IN
IN
RSB timebase slaved to system bus RFSYNC or RMSYNC.
OUT
RSB timebase slaved to system bus RFSYNC. RMSYNC alignment
is arbitrary.
OUT
IN
RSB timebase slaved to system bus RMSYNC. RFSYNC aligns to
TMSYNC input.
OUT
IN
OUT
OUT
RFSYNC and RMSYNC alignment is arbitrary.
Thru = 1 [RSIG_CR;
addr 0D7]
RSB timebase slaved to system bus RFSYNC. RMSYNC is aligned
with the RX timebase and can follow a change of RX multiframe
alignment without generating an alarm indication.
OUT
OUT
RMSYNC is aligned with the RX timebase and can follow a change
of RX multiframe alignment without generating an alarm
indication. RFSYNC is aligned to RMSYNC.
019—Programmable Output Enable (POE)
Unused bits are reserved and should be written to 0.
7
6
5
4
3
2
1
0
—
—
TDL_OE
RDL_OE
INDY_OE
TCKO_OE
—
—
TDL_OE
TDLCKO Output Buffer Control—When enabled, TDLCKO is output according to DL3_TS
and DL3_BIT [addr 015, 016]. TDL_OE should be written to 1 on the CX28395 device.
0 = TDLCKO output enabled
1 = TDLCKO output three-stated
RDL_OE
RDLCKO and RDLO Output Buffer Control—When enabled, both bimodal signals are output
by their respective internal circuits. Otherwise, both outputs are placed in high impedance
state. RDL_OE should be written to 1 on the CX28395 device.
0 = RDLCKO and RDLO outputs enabled
1 = RDLCKO and RDLO outputs three-stated
INDY_OE
TCKO_OE
RINDO and TINDO Output Buffer Control—When enabled, both bimodal signals are output by
their respective internal circuits. Otherwise, both outputs are forced into high impedance state.
0 = RINDO outputs enabled
1 = RINDO outputs three-stated
TCKO Output Buffer Control—Allows the system to connect multiple devices to a common
clock bus by providing programmable three-state control over the TCKO output buffer.
0 = TCKO output enabled
1 = TCKO output three-stated
100054E
Conexant
3-33
CONEXANT [ CONEXANT SYSTEMS, INC ]
