BT8954 CONEXANT [Conexant Systems, Inc], BT8954 Datasheet - Page 75

• Manufacturer Part Number: BT8954
• Description: VOICE PAIR GAIN FRAMER
• Manufacturer: CONEXANT [Conexant Systems, Inc]

Bt8954
Voice Pair Gain Framer
RSFIFO_I[48:1],
and RSFIFO_O[48:1]
Figure 4-3. Receive Signaling FIFOs
N8954DSC
0xE4—Receive Signaling FIFOs (RSFIFOs)
RIND_LO (Address 0xE2)
RIND_HI (Address 0xE3)
MC
NOTE(S):
(1)
(2)
(3)
To
15
—
From Receiver
From MC; for testing only
For testing only
7
RSFIFO_0[48]
RSFIFO_0[2]
RSFIFO_0[1]
(RSFIFO_I), and receive signaling output FIFO (RSFIFO_O) are used to receive signaling
information, as illustrated in
•
•
•
Employing a double-buffering scheme, two 48-byte FIFOs, receive signaling input FIFO
14
—
6
RD_RSIG
13
—
5
(1)
O
Figure
12
4
Conexant
TEST_RSFIFO
RIND[7:0]
4-3.
I
UPDATE_RSFIFO_O
11
3
RIND[12:8]
RSFIFO_I[48]
RSFIFO_I[2]
RSFIFO_I[1]
10
(2)
2
•
•
•
TEST_RS FIFO
4.11 Receive/Transmit Status
O
1
9
I
Receiver
From MC
From
V
V
OUT_OF_SYNC
4.0 Registers
(3)
0
8
4-23