BT8375 CONEXANT [Conexant Systems, Inc], BT8375 Datasheet - Page 61

• Manufacturer Part Number: BT8375
• Description: single chip transceivers for T1/E1 and Integrated Service Digital Network (ISDN) primary rate interfaces
• Manufacturer: CONEXANT [Conexant Systems, Inc]

Bt8370/8375/8376
Fully Integrated T1/E1 Framer and Line Interface
Figure 2-16. RSB 4.096 MHz Bus Mode Time Slot Interleaving
Figure 2-17. RSB 8.192 MHz Bus Mode Time Slot Interleaving
N8370DSE
NOTE(S):
Output sync on rising edge clock, RSYN_NEG = 0 [addr 0D1]. RSBCKI operates at 1 times the data rate. RSB.OFFSET
equals 0.
NOTE(S):
Output sync on rising edge clock, RSYN_NEG = 0 [addr 0D1]. RSBCKI operates at 1 times the data rate. RSB.OFFSET
equals 0.
RFSYNC
RSBCKI
RPCMO
RSIGO
RFSYNC
RSBCKI
RPCMO
RSIGO
A and B time slot data comes from different Bt8370s. Output data on rising edge clock, RCPM_NEG = 0 [addr 0D1].
A, B, C, and D data comes from different Bt8370s. Output data on rising edge clock, RCPM_NEG = 0 [addr 0D1].
SIG31A
TS31A
SIG31A
TS31A
and 8.192. The T1 rate without a framing bit is 1.536 MHz, consisting of 24 time
slots. The T1 rate with a framing bit 1.544 MHz. The E1 rate is 2.048 MHz,
consisting of 32 time slots. Twice the E1 rate is 4.096 MHz, consisting of 64 time
slots. Four times the E1 rate is 8.192 MHz, consisting of 128 time slots. The
4.096 and 8.192 MHz bus modes contain multiple bus members (A, B, C, D)
which allow multiple T1/E1 signals to share the same system bus. This is done by
interleaving the time slots to a maximum of four Bt8370s without external
circuitry (see
line rate and must be selected using the System Bus Interface Configuration
register [SBI_CR; addr 0D0].
SIG31B
TS31B
The RSB supports five system bus rates (MHz): 1.536, 1.544, 2.048, 4.096,
SIG31C
TS31C
Figures 2-15
SIG31B
TS31B
Conexant
SIG31D
TS31D
and 2-17). The system bus rate is independent of the
SIG0A
TS0A
SIG0A
TS0A
SIG0B
TS0B
SIG0C
TS0C
SIG0B
2.0 Circuit Description
TS0B
2.5 Receive System Bus
SIG0D
TS0D
2-33