DS90UB964-Q1 Datasheet, PDF (43/116 Pages) Texas Instruments – DS90UB964-Q1 Quad FPD-Link III Deserializer Hub

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DS90UB964-Q1
SNLS500 – JULY 2016
The first two steps are optional. The interrupt could be determined and cleared by just reading the status
registers.
8.5.4.3 Code Example to Readback Interrupts
INTERRUPT_STS = ReadI2C(0x24) # 0x24 INTERRUPT_STS
if ((INTERRUPT_STS & 0x80) >> 7):
print "# GLOBAL INTERRUPT DETECTED "
if ((INTERRUPT_STS & 0x40) >> 6):
print "# RESERVED "
if ((INTERRUPT_STS & 0x20) >> 5):
print "# IS_CSI_TX1 DETECTED "
if ((INTERRUPT_STS & 0x10) >> 4):
print "# IS_CSI_TX0 DETECTED "
if ((INTERRUPT_STS & 0x08) >> 3):
print "# IS_RX3 DETECTED "
if ((INTERRUPT_STS & 0x04) >> 2):
print "# IS_RX2 DETECTED "
if ((INTERRUPT_STS & 0x02) >> 1):
print "# IS_RX1 DETECTED "
if ((INTERRUPT_STS & 0x01) ):
print "# IS_RX0 DETECTED "
# "################################################"
# "RX0 status"
# "################################################"
WriteReg(0x4C,0x01) # RX0
PORT_ISR_LO = ReadI2C(0xDB)
print "0xDB PORT_ISR_LO : ", hex(PORT_ISR_LO) # readout; cleared by RX_PORT_STS2
if ((PORT_ISR_LO & 0x40) >> 6):
print "# IS_LINE_LEN_CHG INTERRUPT DETECTED "
if ((PORT_ISR_LO & 0x20) >> 5):
print "# IS_LINE_CNT_CHG DETECTED "
if ((PORT_ISR_LO & 0x10) >> 4):
print "# IS_BUFFER_ERR DETECTED "
if ((PORT_ISR_LO & 0x08) >> 3):
print "# IS_CSI_RX_ERR DETECTED "
if ((PORT_ISR_LO & 0x04) >> 2):
print "# IS_FPD3_PAR_ERR DETECTED "
if ((PORT_ISR_LO & 0x02) >> 1):
print "# IS_PORT_PASS DETECTED "
if ((PORT_ISR_LO & 0x01) ) :
print "# IS_LOCK_STS DETECTED "
################################################
PORT_ISR_HI = ReadI2C(0xDA)
print "0xDA PORT_ISR_HI : ", hex(PORT_ISR_HI) # readout; cleared by RX_PORT_STS2
if ((PORT_ISR_HI & 0x04) >> 2):
print "# IS_FPD3_ENC_ERR DETECTED "
if ((PORT_ISR_HI & 0x02) >> 1):
print "# IS_BCC_SEQ_ERR DETECTED "
if ((PORT_ISR_HI & 0x01) ) :
print "# IS_BCC_CRC_ERR DETECTED "
################################################
RX_PORT_STS1 = ReadI2C(0x4D) # R/COR
if ( (RX_PORT_STS1 & 0xc0) >> 6) == 3:
print "# RX_PORT_NUM = RX3"
elif ((RX_PORT_STS1 & 0xc0) >> 6) == 2:
print "# RX_PORT_NUM = RX2"
elif ((RX_PORT_STS1 & 0xc0) >> 6) == 1:
print "# RX_PORT_NUM = RX1"
elif ((RX_PORT_STS1 & 0xc0) >> 6) == 0:
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