Analog Devices Advantiv ADV7619 Hardware User's Manual page 44

UG-237
ENABLE TMDS_CLK_X_ST
THE HDMI PORTS THAT ARE USED
ENABLE TMDS_PLL_LCK_ST INTERRUPT
ENABLE NEW_TMDS_FRQ_ST INTERRUPT
NO
NO
1
THE TMDS_CLK_X_ST INTERRUPTS FOLLOW
-TMDS_CLK_A_ST (IO MAP, REG 0x6B BIT [3])
-TMDS_CLK_B_ST (IO MAP, REG 0x6B BIT [2])
-TMDS_CLK_C_ST (IO MAP, REG 0x6B BIT [1])
-TMDS_CLK_D_ST (IO MAP, REG 0x6B BIT [0])
START
1
INTERRUPT FOR
IS
TMDS_CLK_X_RA
W SET?
YES
IS
YES
READ THE TMDS FREQUENCY
TMDS_PLL_LCK_R
AW SET?
TMDS FREQUENCY READ BACK VALID
Figure 9. Monitoring TMDS Clock Frequency
TMDS FREQUENCY READ BACK
NOT VALID OR STABLE
TMDSFREQ
IS
YES
TMDS_CLK_X_ST
SET?
NO
IS
YES
TMDS_PLL_LCK_S
T SET?
NO
IS
YES
NEW_TMDS_FRQ_
ST SET?
NO
AND STABLE
Rev. A | Page 44 of 204
Hardware User Guide
CLEAR TMDS_CLK_X_ST BY
SETTING TMDS_CLK_X_CLR TO 1
CLEAR TMDS_PLL_LCK_ST BY
SETTING TMDS_PLL_LCK_S_CLR TO 1
CLEAR TMDS_FRQ_ST BY
SETTING NEW_TMDS_FRQ_ST_CLR TO 1