Yamaha DRX-1 Service Manual page 93

HD_M_DQ(15:0)
Host Decoder SDRAM data bus
HD_M_DQML
Host Decoder SDRAM data mask enable(Lower)
HD_M_DQMU
Host Decoder SDRAM data mask enable(Upper)
HD_M_RASN
Host Decoder SDRAM row address strobe
HD_M_WEN
Host Decoder SDRAM write enable
HSOUT
Horizontal synchronisation OUT
ION
Inverted ON: Enable the power supply for the digital board
when LOW
IRESET_DIG
Initialisation of the digital board, HIGH when power ON
JTAG3_TCK
JTAG Test Clock
JTAG3_TD_VIP_TO_VE
JTAG Transmitted Data Video Input Processor to Video
Encoder
JTAG3_TD_VSM_TO_VIP
JTAG Transmitted Data Versatile Stream Manager to
Video
Input Processor
JTAG3_TMS
JTAG Test Mode Select
JTAG3_TRSTN
JTAG Test part ResetN
LOAD_DVN
LOAD Digital Video(LOW active)
MUTEN
Mute enable
MUTEN_LV
Mute enable Low Voltage
P_SCAN_YUV(7:0)
Progressive Scan digital video bus
R_IN_VIP
Video Red input to Video Input Processor
R_OUT
Video Red output from Host Decoder
R_OUT_B
Filtered Red Video output from Host Decoder
RAS
Row Address Strobe
RESETN
Reset Host Decoder
RESETN_BE
System reset basic engine (buffered)
RESETN_DVIO
System reset Digital Video Input Output (buffered)
RESETN_VE
System reset Video Encoder
ROMH_CEN
Flash 2 chip enable
ROML_CEN
Flash 1 chip enable
RSTN_BE
Reset control of basic engine
RSTN_DVIO
Reset control of DVIO
RTS1P
Ready To Send data to service serial interface
RX1P
Receive data from service serial interface
SCL
I2C bus clock
SD_CASN
SDRAM Column Address strobe output (active LOW)
SD_CLK
SDRAM clock output
SD_CLKE
SDRAM clock enable output
SD_CSN
SDRAM
SD_DQM(1:0)
SDRAM data mask enable output
SD_RASN
SDRAM row address strobe output
SD_WEN
SDRAM write enable output
SDA
I2C bus data
SEL_ACLK1
Select audio clock(playback)
SM_CS3N
SRAM chip select
SM_LBN
SRAM lower bank
SM_OEN
SRAM output enable
SM_UBN
SRAM upper bank
SM_WEN
SRAM write enable
SMA(17:0)
SRAM address output
SMD(15:0)
SRAM data input/output
SYSCLK_EMPRESS
System clock EMPRESS
SYSCLK_PROGSCAN
System clock Progressive Scan
SYSCLK_VSM_5508
System clock VSM and Host decoder
TX1P
Transmit data to service serial interface
U_IN
Video U input
U_IN_VIP
Video U input to Video Input Processor
V_IN
Video V input
V_IN_VIP
Video V input to Video Input Processor
DRX-1
93