28
DHT-390XP AVR-390
PIN NAME FUNCTION
HINBSY, GPIO8 Input Host Message Status, General Purpose I/O
SD_DATA15, EXTA18
SDRAM Data Bus, SRAM External Address Bus
SD_DATA14, EXTA17
SD_DATA13, EXTA16
SD_DATA12, EXTA15
SD_DATA11, EXTA14
SD_DATA10, EXTA13
SD_DATA9, EXTA12
SD_DATA8, EXTA11
SD_DATA7, EXTD7
SDRAM Data Bus, SRAM External Data Bus
SD_DATA6, EXTD6
SD_DATA5, EXTD5
SD_DATA4, EXTD4
SD_DATA3, EXTD3
SD_DATA2, EXTD2
SD_DATA1, EXTD1
SD_DATA0, EXTD0
SD_ADDR10, EXTA10
SDRAM Address Bus, SRAM External Address Bus
SD_ADDR9, EXTA9
SD_ADDR8, EXTA8
SD_ADDR7, EXTA7
SD_ADDR6, EXTA6
SD_ADDR5, EXTA5
SD_ADDR4, EXTA4
SD_ADDR3, EXTA3
SD_ADDR2, EXTA2
SD_ADDR1, EXTA1
SD_ADDR0, EXTA0
SD_CLK_OUT SDRAM Clock Output
SD_CLK_IN SDRAM Re-timing Clock Input
SD_CLK_EN SDRAM Clock Enable
SD_BA, EXTA19 SDRAM Bank Address Select, SRAM External Address Bus
SD_CS SDRAM Chip Select
SD_RAS SDRAM Row Address Strobe
SD_CAS SDRAM Column Address Strobe
SD_WE SDRAM Write Enable
SD_DQM1 SDRAM Data Mask 1
SD_DQM0 SDRAM Data Mask 2
NV_CS, GPIO14 SRAM Chip Select, General Purpose I/O
NV_OE, GPIO15 SRAM Output Enable, General Purpose I/O
NV_WE, GPIO16 SRAM Write Enable, General Purpose I/O
UHS2, CS_OUT, GPIO17 Mode Select Bit 2, External Serial Memory Chip Select, General Purpose I/O
UHS0, GPIO18 Mode Select Bit 0, General Purpose I/O
UHS1, GPIO19 Mode Select Bit 1, General Purpose I/O
GPIO20 General Purpose I/O
GPIO21 General Purpose I/O
VDD[7:1] 2.5V Supply Voltage
VSS 2.5V Ground
NC[5:1] No Connect
VDDSD[4:1] 3.3V SDRAM/SRAM/EPROM Interface Supply
VSSSD 3.3V SDRAM/SRAM/EPROM Interface Ground
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