C
Appendix C
C.1 System Bus Compatibility
C.1.1 AT&T Concentration Highway Interface (CHI):
DX = RPCMO
+ output on rising or falling edge of clock
+ output on every CLKXR or CLKXR/2
+ Tri-stated during inactive time slots
DR = TPCMI
+ sampled on rising or falling edge of clock
+ sampled on every CLKXR or CLKXR/2 (see X2CLK mode)
FS = TFSYNC
+ sampled on rising or falling edge of clock (FE select)
+ rising edge determines frame start
+ 8 kHz rate
TSC* = RINDO
+ Optional CHI pin is driven low during active DX time slots
CLKXR = TSBCLKI = RSBCLKI
+ N x 64 kHz rates, where N = 4, 8, 16, 32, 48 or 64
100054E
Conexant
C-1
CONEXANT [ CONEXANT SYSTEMS, INC ]
