Video input ports (Maya)
Info Box

Overview[edit  edit source]
DM8148 processor provides a rich video subsystem that integrates input ports. These are described in detail on chapter 12 of [1] Technical Reference Manual.
Three video inputs are available:
 VIN0 (in turn splittable in two subports)
 VIN1 (in turn splittable in two subports)
 camera parallel interface (CPI).
From the architectural standpoint, VIN0 and VIN1 ports belong to the HDVPSS subsytems. For the sake of completeness a simplified block diagram of it is shown below.
Camera parallel interface belongs to the Imaging Subsystem (ISS) instead. As ISS documentation is released under NDA, no information are provided here. For more details about it please contact your local Texas Instruments sales representative or FAE.
Main features[edit  edit source]
The following is a list of VIN0/VIN1 main features:
 The HDVPSS supports two independently configurable external video input capture ports with up to 165MHz.
 Each video input capture port can be operated as one 24bit mode to support RGB capture or 16bit input channel (with separate Y and Cb/Cr inputs) or two clock independent 8bit input channels (with interleaved Y/C data input).
 Support both embedded sync and discrete sync
 The video capture port channel supports demultiplexing of both pixeltopixel and linetoline multiplexed streams.
 Up to 1920x1200@60 Hz (165 MHz) input data rate supports 16bit mode input port.
 Each video capture port supports one scaler capable of both up and down scaling of one nonmultiplexed input stream (one of two 8bit channel inputs or 16bit channel input data). Note that if the source is from external video decoder/camera, only down scaling is supported.
 Each video capture port supports one programmable color space conversion to convert between 24bit RGB data and YCbCr data.
 The VIP supports data storage in RGB, 422, and 420 formats.
 Each video capture port channel supports chroma downsampling (422 to 420) for any nonmultiplexed input data. The chroma downsampling for multiplexed streams is done as memory to memory operations outside of HDVPSS on an individual frame data.
Routing on Maya connectors[edit  edit source]
The following tables lists which signals  referred to video input/output ports  are routed to Maya SODIMM connector and thus are available to user application. It is also useful to visualize potential issues due to the pads' multiplexing scheme.
PAD  VIN0  CPI  VIN1  VOUT0  VOUT1  VOUT1 (HDMI)  TV_OUT  Available on Maya connector (SODIMM pin #) 
AE17  B_CLK  Y (152)  
AB20  A_CLK  Y (155)  
AC16  A_D23  D15  N  
AC21  A_D22  D14  N  
AE18  A_D21  D13  N  
AC17  A_D20  D12  N  
AF21  A_D19  D11  N  
AF20  A_D18  D10  N  
AB21  A_D17  D9  N  
AA21  A_D16  D8  N  
AC14  A_D15_BD7  SHUTTER  Y (149)  
AC12  A_D14_BD6  STROBE  Y (147)  
AF17  A_D13_BD5  RESET  Y (145)  
AG17  A_D12_BD4  Y (143)  
AH17  A_D11_BD3  WE  Y (141)  
AH9  A_D10_BD2  Y (137)  
AG9  A_D9_BD1  Y (135)  
AB15  A_D8_BD0  Y (133)  
AA11  A_D7  Y (131)  
AH16  A_D6  Y (129)  
AG16  A_D5  Y (127)  
AH8  A_D4  Y (125)  
AE12  A_D3  Y (123)  
AC9  A_D2  Y (119)  
AB11  A_D1  Y (117)  
AF9  A_D0  Y (115)  
AE21  A_DE / B_HSYNC  Y (148)  
AC20  A_HSYNC  Y (161)  
AA20  A_FLD / B_VSYNC  Y (146)  
AD20  A_VSYNC  Y (159)  
AD17  B_FLD  D4  Y (154)  
AC22  A_FLD  D5  Y (151)  
AC15  B_DE  D6  Y (156)  
AB17  A_DE  D7  Y (153)  
AF18  PCLK  Y (69)  
AD18  D3  G_Y_YC[1]  N  
AC18  D2  G_Y_YC[0]  N  
AC19  D1  R_CR[1]  N  
AA22  D0  R_CR[0]  N  
AE23  HS  B_CB_C[1]  N  
AD23  VS  B_CB_C[0]  N  
AB23  WE / FLD  FLD  Y (105)  
P26  B_CLK  AVID  N  
Y22  A_CLK  N  
AE27  A_D23  R_CR[2]  HPDET  N  
AG28  A_D22  R_CR[3]  SDA  N  
AF27  A_D21  G_Y_YC[2]  SCL  N  
Y24  A_D20  R_CR[9]  N  
W23  A_D19  R_CR[8]  N  
V22  A_D18  R_CR[7]  N  
AA25  A_D17  R_CR[6]  N  
AC26  A_D16  R_CR[5]  N  
AG27  A_D15  R_CR[4]  N  
AD26  A_D14  G_Y_YC[9]  N  
AE26  A_D13  G_Y_YC[8]  N  
AF26  A_D12  G_Y_YC[7]  N  
AH27  A_D11  G_Y_YC[6]  N  
AG26  A_D10  G_Y_YC[5]  N  
W22  A_D9  G_Y_YC[4]  N  
Y23  A_D8  G_Y_YC[3]  N  
AF28  A_D7  B_CB_C[2]  CEC  N  
AA24  A_D6  B_CB_C[9]  N  
AH26  A_D5  B_CB_C[8]  N  
AC25  A_D4  B_CB_C[7]  N  
AD25  A_D3  B_CB_C[6]  N  
AF25  A_D2  B_CB_C[5]  N  
AG25  A_D1  B_CB_C[4]  N  
AH25  A_D0  B_CB_C[3]  N  
R23  B_D7  N  
P23  B_D6  N  
G28  B_D5  N  
H27  B_D4  N  
J26  B_D3  N  
R25  B_D2  N  
L23  B_D1  N  
L24  B_D0  N  
AE24  A_HSYNC  CLK  N  
AC24  A_VSYNC  HSYNC  N  
AA23  A_DE / A_FLD  VSYNC  N  
AD12  CLK  Y (61)  
AF14  G_Y_YC[9]  Y (80)  
AE14  G_Y_YC[8]  Y (78)  
AD14  G_Y_YC[7]  Y (76)  
AA8  G_Y_YC[6]  Y (74)  
AB12  G_Y_YC[5]  Y (72)  
AB8  G_Y_YC[4]  Y (70)  
AH15  G_Y_YC[3]  Y (68)  
AH7  G_Y_YC[2]  Y (66)  
AG15  B_CB_C[9]  Y (62)  
AF15  B_CB_C[8]  Y (60)  
AB10  B_CB_C[7]  Y (58)  
AC10  B_CB_C[6]  Y (56)  
AD15  B_CB_C[5]  Y (54)  
AD11  B_CB_C[4]  Y (52)  
AE15  B_CB_C[3]  Y (50)  
AG7  B_CB_C[2]  Y (48)  
AC13  R_CR[9]  Y (87)  
AE8  R_CR[8]  Y (85)  
AF12  R_CR[7]  Y (83)  
AF6  R_CR[6]  Y (81)  
AF8  R_CR[5]  Y (79)  
AA9  R_CR[4]  Y (77)  
AB9  R_CR[3]  Y (75)  
AD9  R_CR[2]  Y (73)  
AB13  VSYNC  Y (65)  
AC11  HSYNC  Y (63)  
AF18  FLD  Y (69)  
AA10  FLD/AVID  Y (67)  
AG18  CLKP  N  
AH18  CLKN  N  
AH21  DN2  N  
AG21  DP2  N  
AH20  DN1  N  
AG20  DP1  N  
AH19  DN0  N  
AG19  DP0  N  
AF24  SCL  Y (165)  
AG24  SDA  Y (167)  
AB27  CEC  N  
AA26  HPDET  N  
AH24  OUT0  Y (18)  
AH22  OUT1  n  
Following is a brief summary of video input ports available on Maya connector:
 VIN0A: available (16/8bit only)
 VIN0B: not available
 VIN1A: not available