AD9889 Analog Devices, AD9889 Datasheet - Page 27

• Manufacturer Part Number: AD9889
• Description: High Performance HDMI/DVI Transmitter
• Manufacturer: Analog Devices

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DataSheet
4
Hex
Address
0x40
0x41
0x42
0x43
0x44
0x45
0x46
U
.com
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write or Read
Only
Read
Read/Write
Read/Write
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Bits
[7]
[6]
[5]
[4]
[3]
[6]
[5]
[4]
[3]
[7]
[6]
[5]
[7:0]
[7]
[6]
[5]
[4]
[3]
[7]
[6]
[5:4]
[3]
[2:1]
[7:6]
Default
Value
0*******
*0******
**0*****
***0****
****0***
*1******
**0*****
***1****
****0***
1*******
*0******
**0*****
01111110
0*******
*1******
**1*****
***1****
****1***
0*******
*0******
**00****
****0***
*****00*
00******
Register Name
GC_pkt_en
SPD_pkt_en
MPEG_pkt_en
ACP_pkt_en
ISRC_pkt_en
system_PD
Test bit
INTR_pol
initiate_scan
PD_pol
HPD_state
MSEN_state
EDID_ID
spdif_en
N_CTS_pkt_en
audio_sample_pkt_en
aviIF_pkt_en
audioIF_pkt_en
clear_avmute
set_avmute
Y1Y0
Active Format
Information Status
Bar Information
Scan Information
Rev. 0 | Page 27 of 48
Description
1 = enable General Control packet. Default = 0.
1 = enable Source Product Descriptor packet.
Default = 0.
1 = enable MPEG packet. Default = 0.
1 = enable ACP packet. Default = 0.
1 = enable ISRC packet. Default = 0.
0 = all circuits powered up.
1 = power down the whole chip, except I
interrupt and MSEN interrupt.
Default = 1.
Must be set to 0.
Interrupt polarity.
0 = low active interrupt.
1 = high active interrupt.
Default = 1.
1 = initiate scan. Default = 1.
Polarity for power-down pin.
0 = low active.
1 = high active.
State of the hot plug detection.
0 = hot plug detect inactive.
1 = hot plug active.
State of the monitor connection.
0 = HDMI clock termination not detected.
1 = HDMI clock termination detected.
The I
1 = enable S/PDIF receiver. Default = 0.
1 = enable N_CTS packet. Default = 1.
1 = enable audio sample packet. Default = 1.
1 = enable avi info frame. Default = 1.
1 = enable audio info frame. Default = 1.
1 = clear av mute. Default = 0.
1 = set av mute. Default = 0.
Output format, should be written when R0x16[7:6] is
written.
00 = RGB.
01 = YCbCr 4:2:2.
10 = YCbCr 4:4:4.
11 = reserved.
Default = 00.
Active format information present.
0 = no data.
1 = active format information valid.
Default = 0.
B[1:0].
00 = no bar information.
01 = horizontal bar information valid.
10 = vertical bar information valid.
11 = horizontal and Vertical bar information valid.
Default = 00.
S[1:0].
00 = no information.
01 = overscanned (television).
10 = underscanned (computer).
11 = undefined.
Default = 00.
2
C address for EDID memory. Default = R0x7E.
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