STLC5465B STMicroelectronics, STLC5465B Datasheet - Page 91

• Manufacturer Part Number: STLC5465B
• Description: Telecom ICs Multi-HDLC Sw Matrix
• Manufacturer: STMicroelectronics
• Type: Telecom IC - Variousr

Specifications of STLC5465B

• Operating Supply Voltage: 4.75 V to 5.25 V
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: PQFP-160
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

VIII - INTERNAL REGISTERS (continued)
VIII.29 - Interrupt Register - IR (38)H
This register is read only.
When this register is read by the microprocessor, this register is reset (0000)
If not masked, each bit at ”1” generates ”1” on INT0 pin.
HDLC
C/IRX
MRX
MTX
ICOV
RxFWAR
RxFOV
TxFWAR
TxFOV
INTFWAR : INTERRUPT CONTROLLER FIFO WARNING
INTFOV
TIM
TBFS : Time Base running with Frame Synchronisation signal
bit15
Nu
Nu
TBFS=1, the Time Base defined by the Timer Register (see page 92) is running on the rising
edge of Frame Synchronisation signal.
TBFS=0, the Time Base defined by the Timer Register is running on the rising edge of MCLK
signal.
SFCO PRSR
: HDLC INTERRUPT
: Command/Indicate Rx Interrupt
: Rx MONITOR CHANNEL INTERRUPT
: Tx MONITOR CHANNEL INTERRUPT
: INTERRUPT CIRCULAR OVERLOAD
: Rx DMA CONTROLLER FIFO WARNING
: Rx DMA CONTROLLER FIFO OVERLOAD
: Tx DMA CONTROLLER FIFO WARNING
: Tx DMA CONTROLLER FIFO OVERLOAD
: INTERRUPT CONTROLLER FIFO OVERLOAD
: TIMER
HDLC = 1, Tx HDLC or Rx HDLC has generated an interrupt The status is in the HDLC
queue.
C/IRX = 1, Rx Commande/Indicate has generated an interrupt. The status is in the HDLC
queue.
MRX = 1, one Rx MONITOR CHANNEL has generated an interrupt.The status is in the Rx
Monitor Channel queue.
MTX = 1, one or several Tx MONITOR CHANNELS have generated an interrupt. Transmit
Monitor Interrupt Register (TMIR) indicates the Tx Monitor Channels which have generated
this interrupt.
ICOV = 1, One of three circular interrupt memories is completed.
RxFWAR = 1, Rx DMA CONTROLLER has generated an interrupt, its fifo is 3/4 completed.
RxFOV = 1, Rx DMA CONTROLLER has generatedan interrupt, it cannottransfer data from
Rx HDLC to external memory, its fifo is completed.
TxFWAR = 1, Tx DMA CONTROLLER has generated an interrupt, its fifo is 3/4 completed.
TxFOV = 1, Tx DMACONTROLLER has generated an interrupt, it cannot transfer data from
Tx HDLC to external memory, its fifo is completed.
INTFWAR = 1, INTERRUPT CONTROLLER has generated an interrupt, its fifo is 3/4
completed.
INTFOV = 1, INTERRUPT CONTROLLER has generated an interrupt, it cannot transfer
status from DMA and GCI controllers to external memory, its internal fifo is completed.
TIM = 1, the programmable timer has generated an interrupt.
TIM
FOV
INT
FWAR
INT
After reset (0000)
FOV
bit8
Tx
FWAR
bit7
Tx
FOV
Rx
H
FWAR
Rx
ICOV
H
.
MTX MRX C/IRX HDLC
STLC5465B
91/101
bit 0