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Field Name
D2CRTC_TRIGB_SOURCE_SELECT
D2CRTC_TRIGB_POLARITY_SELECT
D2CRTC_TRIGB_RESYNC_BYPASS_EN
D2CRTC_TRIGB_INPUT_STATUS (R)
D2CRTC_TRIGB_POLARITY_STATUS (R)
D2CRTC_TRIGB_OCCURRED (R)
D2CRTC_TRIGB_RISING_EDGE_DETECT_CN
TL
D2CRTC_TRIGB_FALLING_EDGE_DETECT_C
NTL
D2CRTC_TRIGB_FREQUENCY_SELECT
D2CRTC_TRIGB_DELAY
D2CRTC_TRIGB_CLEAR (W)
Control for external trigger B signal of CRTC2
© 2007 Advanced Micro Devices, Inc.
Proprietary
D2CRTC_TRIGB_CNTL - RW - 32 bits - DISPDEC:0x6868
Bits
3:0
6:4
8
9
10
11
13:12
17:16
21:20
28:24
31
D2CRTC_TRIGB_MANUAL_TRIG - RW - 32 bits - DISPDEC:0x686C
Default
0x0
Select source of input signals for external trigger B
0 = logic 0
1 = VSYNCA from another CRTC of the chip
2 = HSYNCA from another CRTC of the chip
3 = VSYNCB from another CRTC of the chip
4 = HSYNCB from another CRTC of the chip
5 = GENERICA pin
6 = GENERICB pin
7 = VSYNCA pin
8 = HSYNCA pin
9 = VSYNCB pin
10 = HSYNCB pin
11 = HPD1 pin
12 = HPD2 pin
13 = DVALID pin
14 = PSYNC pin
15 = Video capture complete signal from VIP
0x0
Selects source of input signal from polarity of external trigger B
0 = logic 0
1 = interlace polarity from another CRTC of the chip
2 = GENERICA pin
3 = GENERICB pin
4 = HSYNCA pin
5 = HSYNCB pin
6 = video capture polarity input from VIP
7 = DVALID pin
0x0
Bypass the resync logic for the external trigger B signal and its polar-
ity input signal
0 = do not bypass
1 = bypass the resync logic
0x0
Read back the value of the external trigger B input signal after the
mux
0x0
Reports the value of the external trigger B polarity signal after the
mux
0x0
Reports whether external trigger B has occurred. A sticky bit.
0 = has not occurred
1 = has occurred
0x0
Controls the detection of rising edge of the external trigger B signal
00 = do not detect rising edge
01 = always detect rising edge
10 = detect rising edge only when field polarity is low
11 = detect rising edge only when field polarity is high
0x0
Controls the detection of falling edge of external trigger B signal
00 = do not detect falling edge
01 = always detect falling edge
10 = detect falling edge only when field polarity is low
11 = detect falling edge only when field polarity is high
0x0
Determines the frequency of the external trigger B signal
00 = send every signal
01 = send every 2 signals
10 = reserved
11 = send every 4 signals
0x0
A programmable delay to send external trigger B signal
0x0
Clears the sticky bit D2CRTC_TRIGB_OCCURRED when written
with '1'
CRTC Registers
Description
M56 Register Reference Manual
2-285
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