cx29503 Mindspeed Technologies, cx29503 Datasheet - Page 240

• Manufacturer Part Number: cx29503
• Description: Cx29503 Broadband Access Multiplexer Data Sheet
• Manufacturer: Mindspeed Technologies

Register Description
E3Frm
CbitP/832
0x5221—Counter Interrupt Enable Register
Writing a 1 to an IER bit allows that specific interrupt source to activate its respective ISR bit in the Counter
ISR [addr: 242], set the appropriate bit in the Interrupt Request Register (IRR) [addr: 241], and report the
interrupt to the Global Control and Status block. If cleared, each IER bit allows that source to activate its
respective ISR bit, but prevents activation of the IRR bit and reporting the interrupt to the Global Control and
Status Block.
Default after reset:
Direction:
Modification:
EXZCtrIE
XDgrCtrlE
LCVCtrIE
FEBECtrIE
PthCtrIE
FerrCtrIE
PDgrCtrIE
ParCtrIE
8-110
EXZCtrlE
7
XDgrCtrlE
E3 Framing Mode—Enables the E3 mode framing and transmission circuitry. When cleared,
the DS3 mode is active. The specific framing format is defined according to the CbitP/832 bit.
C-Bit Parity/E3-G.832 Mode—Selects which type of framing is present on the transmitted
DS3/E3 signal. When the E3Frm bit is low, if this bit is low, the basic DS3 framing mode used
is (M13/M23). When the E3Frm bit is low, if this control bit is high, the C-bit positions are
used for the FEBE, FEAC, terminal data link, path parity, and mode indicator bits as defined in
T1.107-1995. When the E3Frm bit is high, if this bit is low, the E3-G.751 framing type is used.
When the E3Frm bit is high and this bit is high, E3-G.832 framing is selected but not
supported by the CX29503.
00(h)
Read/Write
Dynamic
Enable Excessive 0s Counter Interrupt
Enable X bits Disagreement Counter Interrupt
Enable Line Code Violation Counter Interrupt
Enable FEBE Event Counter Interrupt
Enable Path Parity Error Counter Interrupt
Enable Frame Error Counter Interrupt
Enable Disagreement Counter Interrupt
Enable Parity Error Counter Interrupt
6
Table 8-44. DS3/E3 Framing Mode Selection
E3Frm
LCVCtrIE
0
0
1
1
5
Mindspeed Technologies™
FEBECtrIE
Preliminary Information
CbitP/832
4
0
1
0
1
PthCtrIE
3
DS3-M13/M23
DS3-C-Bit Parity
E3-G.751
E3-G.832 (not supported)
FerrCtrIE
2
Framing Mode
PDgrCtrIE
1
CX29503 Data Sheet
29503-DSH-002-B
ParCtrIE
0