Harman Kardon AVR140 Service Manual page 110

AVR140
HINBSY, GPIO8 — Input Host Message Status, General Purpose I/O
This pin indicates that serial or parallel communication data written to the DSP has not been
read yet. This pin can act as a general-purpose input or output that can be individually
configured and controlled by DSPC. This pin has an internal pull-up. BIDIRECTIONAL -
Default: OUTPUT
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
SDRAM data bus 15:8. SRAM external address bus 18:11. OUTPUT
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
SDRAM data bus 7:0. SRAM external data bus 7:0. BIDIRECTIONAL - Default: INPUT
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
SDRAM address bus 10:0. SRAM external address bus 10:0. OUTPUT
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