1.0 Pin Descriptions
1.1 Pin Assignments
Bt8370/8375/8376
Fully Integrated T1/E1 Framer and Line Interface
Table 1-1. Hardware Signal Definitions (7 of 8)
Pin Label
Signal Name
I/O
Definition
Receive System Bus (RSB) (Continued)
Active-high indicates that signaling bit updates are suspended for both
SIGFRZ
Signaling Freeze
O
receive signaling buffer [RSIGn; addr 1A0–1BF] and stack [STACK; addr
0DA] register. SIGFRZ, clocked by RSB clock, goes high coinciding with
receive loss of frame alignment (see RLOF; addr 047) and returns low 6–9
ms after recovery of frame alignment.
NOTE(S):
1. All RSB and TSB outputs can be placed in high-impedance state (see SBI_OE; addr 0D0).
2. Receive System Bus (RSB)
1-10
Conexant
N8370DSE