BT8375 CONEXANT [Conexant Systems, Inc], BT8375 Datasheet - Page 316

• 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]

Appendix C
C.1 System Bus Compatibility
C.1.2 CHI Programming Options
C-2
CMS = clock mode select
XEN = transmitter enable
FE
XCE = CLKXR output edge select for DX
RCE = CLKXR input edge select for DR
XBOFF = 3-bit transmit output bit offset
RBOFF = 3-bit receive input bit offset
XTS = 6-bit transmit output TS offset
RTS = 6-bit receive input TS offset
bus is defined to operate at Nx64 from N = 4 to N = 48. Bt8370 does not support
AT&T's Dual CHI (separate A/B buses) or K2 buses, nor does it support INTEL's
SLD (ping/pong) 3-pin bus.
0 = line rate
1 = 2X line rate
0 = disable (DX tri-stated)
1 = enable (DX driven during active time slots)
0 = falling edge
1 = rising edge
0 = falling edge
1 = rising edge
0 = falling edge
1 = rising edge
000-1111= CLKXR (or 2xCLKXR) delay from FS to DX bit0
000-111 = CLKXR (or 2xCLKXR) delay from FS to DR bit0
00-3F = CLKXR (or 2xCLKXR) TS delay from FS to DX bit0
00-3F = CLKXR (or 2xCLKXR) TS delay from FS to DR bit0
Bt8370 only supports CHI and GCI buses if N = 24, 32 or 48, although either
= frame edge select
Conexant
Fully Integrated T1/E1 Framer and Line Interface
Bt8370/8375/8376
N8370DSE