SXT6051 Functional Description
Table 8: Operating Mode Vs Output Clock Source Reference
Transmit
Frame
Parallel
Clock
Reference
output
Transmit
Frame
Serial
Clock
Reference
output
MSP & TSOH
Bus
Parallel
Clock
Reference
output
Telecom
Bus
Parallel
Clock
Reference
output
VC3/4 &
TPOH Bus
Clock
Reference
output
MHBCLKO
MICLK
MMSPPCKO
MTBCKO
TPOHCK
ADM
MHBCLKI
Not used
(tri-state)
MHBCLKI
Not used
(tri-state)
MTBCLKI
No Protection ➝ Parallel
interface
(6.48/
19.44 MHz
± 20ppm)
(6.48/
19.44 MHz
±20ppm)
(6.48 MHz
±20 ppm)
Terminal ➝ Protection Main Not used
MHICLK
MHICLK / 8
MHICLK / 8
MHICLK / 8
(tri-state)
Serial interface
(51.84 MHz
±20ppm)
(6.48 MHz
±20 ppm)
(6.48 MHz
±20 ppm)
(6.48 MHz
±20 ppm)
Terminal
MHBCLKI
Not used
(tri-state)
MHBCLKI
MHBCLKI
MHBCLKI
Protection Main
Parallel interface
(6.48/
19.44 MHz
± 20ppm)
(6.48/
19.44 MHz
±20ppm)
(6.48/
19.44 MHz
± 20ppm)
(6.48 /
19.44 MHz
±20ppm)
Terminal ➝ Protection Slave Not used
MHICLK
MMSPPCKI
Not used
(tri-state)
Not used
(tri-state)
(tri-state)
Serial interface
(51.84 MHz
±20ppm)
(6.48/
19.44 MHz
±20ppm)
Terminal
MMSPPCKI
Not used
(tri-state)
MMSPPCKI
Not used
(tri-state)
Not used
(tri-state)
Protection Slave
Parallel interface
(6.48/
19.44 MHz
± 20ppm)
(6.48/
19.44 MHz
±20ppm)
ADM ➝ Protection Main
Not used
(tri-state)
MHICLK
MHICLK / 8
Not used
(tri-state)
MTBCLKI
Serial interface
(51.84 MHz
±20ppm)
(6.48 MHz
±20 ppm)
(6.48 MHz
±20 ppm)
1. In case of LOS, MHICLK can be used as a Blue Clock (see register 40H)
2. In case of LOS, MHBCLKI can be used as a Blue Clock (see register 40H)
41
LevelOne [ LEVEL ONE ]
