Bt8370/8375/8376
Fully Integrated T1/E1 Framer and Line Interface
3.17 System Bus Registers
0DB—RSLIP Phase Status (RPHASE)
7
6
5
4
3
2
1
0
RDELAY[5]
RDELAY[4]
RDELAY[3]
RDELAY[2]
RDELAY[1]
RDELAY[0]
RSLIP_WR
RSLIP_RD
RDELAY[5:0]
RSLIP Buffer Delay—The difference between the RX and RSB timebase in time slot intervals,
reported once per frame, coincident with RFRAME interrupt [ISR3; addr 008]. Actual delay
may vary significantly, depending on which time slots are assigned.
000000 = RX to RSB delay in the range of 0–7 bits
|
111111 = RX to RSB delay in the range of 504–511 bits
RSLIP_RD
RSLIP_WR
Active Receiver Slip Buffer Half—Indicates which half of the receive slip buffer is currently
receiving data from the receiver (0 = RSLIP_LO, 1 = RSLIP_HI). The processor can read data
from the opposite buffer half.
Active RSB Slip Buffer Half—Indicates which half of the receive slip buffer is currently
supplying data to the Receive System Bus (0 = RSLIP_LO, 1 = RSLIP_HI). The processor can
write data to the opposite buffer half.
0DC—TSLIP Phase Status (TPHASE)
7
6
5
4
3
2
1
0
TDELAY[5]
TDELAY[4]
TDELAY[3]
TDELAY[2]
TDELAY[1]
TDELAY[0]
TSLIP_WR
TSLIP_RD
TDELAY[5:0]
TSLIP Buffer Delay—The difference between the TSB and TX timebase in time slot intervals,
reported once per frame, coincident with the TFRAME interrupt [ISR3; addr 008]. The actual
delay may vary significantly, depending on which time slots are assigned.
000000 = TSB to TX delay in the range of 0–7 bits
|
111111 = TSB to TX delay in the range of 496–503 bits
TSLIP_WR
TSLIP_RD
Active Transmitter Slip Buffer Half—Indicates which half of the transmit slip buffer is
currently supplying data to the transmitter (0 = TSLIP_LO, 1 = TSLIP_HI). The processor can
write data to the opposite buffer half.
Active TSB Slip Buffer Half—Indicates which half of the transmit slip buffer is currently
receiving data from the Transmit System Bus (0 = TSLIP_LO, 1 = TSLIP_HI). The processor
can read data from the opposite buffer half.
N8370DSE
Conexant
3-127
CONEXANT [ CONEXANT SYSTEMS, INC ]
