cx29610 Mindspeed Technologies, cx29610 Datasheet - Page 84

• Manufacturer Part Number: cx29610
• Description: Optiphytm - M622 Sts-12/4x Sts-3 Sonet/sdh Multiplexer
• Manufacturer: Mindspeed Technologies

2.0 Functional Description
2.5 Microprocessor Interface
2.5.5 Interrupts
2-40
The status registers and corresponding interrupt/enable registers for the receiver
are listed in
Table 2-23. Receiver Registers
register and an enable bit in the enable register. The status register shows the
current condition of the circuit. Some of the bits are latched to show that an event
occurred since the register was last read. Other bits show the current condition of
an alarm or state. The differences are noted in the register descriptions.
occurred on the corresponding status bit. Interrupt indications are cleared when
the indication register is read. Each interrupt indication bit has an enable bit in the
enable register. The enable bit must be set high to allow that interrupt to appear
on the MInt* output. The state of the enable control does not affect operation of
the indication or status bits; only whether those indications are allowed to appear
on the output pin.
individual status/interrupt bits, a summary interrupt register for each port
indicates the source register of the interrupt in that port and a top-level summary
interrupt register indicates whether the interrupt was from a port or from the
one-second latching circuit. Each of these indications has a corresponding enable.
Figure 2-18
Each status register bit has a corresponding interrupt bit in the interrupt
All of the interrupt register bits are latched indications that a transition
The output enable for the MInt* pin is found in GEN bit 4. In addition to the
Status Register
PNTRSTAT_n
Mindspeed Technologies
RXPTH_n
RXAPS
RXSEC
RXLIN
Table
illustrates the interrupt hierarchy.
—
—
2-23.
Interrupt Indication
PNTRINT_n
PTHINT_n
PORTINT
Register
SUMINT
SECINT
APSINT
LININT
™
Interrupt Enable Register
CX29610 Data Sheet
ENPORTINT
ENSUMINT
ENPNTR_n
29610-DSH-001-C
ENPTH_n
ENAPS
ENSEC
ENLIN
CX29610