Analog Devices Advantiv ADV7611 Hardware User's Manual page 30

UG-180
HPA_AUTO_INT_EDID[1:0], Addr 68 (HDMI), Address 0x6C[2:1]
This control selects the type of automatic control on the HPA output pins. This bit has no effect when HPA_MANUAL is set to 1.
Function
HPA_AUTO_INT_EDID[1:0]
00
01 (default)
10
11
Note: The delay is programmable via HPA_DELAY_SEL[3:0]. Refer to EDID_ENABLE for details on enabling the internal E-EDID for an
HDMI port. In HPA_MAN_VALUE_X and CABLE_DET_X_RAW, X refers to A.
HPA_DELAY_SEL[3:0], Addr 68 (HDMI), Address 0x6C[7:4]
Sets a delay between +5 V detection and hot plug assertion on the HPA output pins, in increments of 100 ms per bit.
Function
HPA_DELAY_SEL[3:0]
0000
0001
0010
1010 (default)
1111
HPA_TRISTATE_A, IO, Address 0x20[3]
Tristates HPA output pin for Port A.
Function
HPA_TRISTATE_A
0 (default)
1
HPA_STATUS_PORT_A, IO, Address 0x21[3] (Read Only)
Readback of HPA status for Port A.
Function
HPA_STATUS_PORT_A
0 (default)
1
Description
HPA of an HDMI port asserted high immediately after internal EDID activated for that port. HPA of a specific
HDMI port deasserted low immediately after internal E-EDID is de-activated for that port.
HPA of an HDMI port asserted high following a programmable delay after part detects an HDMI cable plug
on that port. HPA of an HDMI port immediately deasserted after part detects a cable disconnect on that
HDMI port.
HPA of an HDMI port asserted high after two conditions met.
1. Internal EDID is active for that port.
2. Delayed version of cable detect signal CABLE_DET_X_RAW for that port is high.
HPA of an HDMI port immediately deasserted after either of these two conditions are met:
1. Internal EDID is de-activated for that port.
2. Cable detect signal CABLE_DET_X_RAW for that port is low.
HPA of an HDMI port is asserted high after three conditions met:
1. Internal EDID is active for that port.
2. Delayed version of cable detect signal CABLE_DET_X_RAW for that port is high.
3. User has set manual HPA control for that port to 1 via HPA_MAN_VALUE_X controls.
HPA of an HDMI port immediately deasserted after any of these three conditions met:
1. Internal EDID de-activated for that port.
2. Cable detect signal CABLE_DET_X_RAW for that port is low.
3. User sets the manual HPD control for that port to 0 via HPA_MAN_VALUE_X controls
Description
No delay
100 ms delay
200 ms delay
1 sec delay
1.5 sec delay
Description
HPA_A pin active
Tristates HPA_A pin
Description
+5 V not applied to HPA_A pin by chip
+5 V applied to HPA_A pin by chip
Rev. A | Page 30 of 184
Hardware User Guide