YMF754 Datasheet, PDF (6/60 Pages) YAMAHA CORPORATION – DS-1E

YMF754
3. External Audio Interface (5-pin)
Name
SPDIFOUT
SPDIFIN
ZVBCLK
ZVLRCK
ZVSDI
I/O Type
O
T
I Tup
I Tup
I Tup
I Tup
Size
2mA
-
-
-
-
Function
Digital Audio Interface output
Digital Audio Interface input
Zoomed Video Port Bit Clock
Zoomed Video Port L/R Clock
Zoomed Video Port Serial Data
4. Legacy Device Interface (15-pin)
Name
IRQ5
IRQ7
IRQ9
IRQ10
IRQ11
GP[3:0]
GP[7:4]
RXD
TXD
I/O Type
O Ttr
O Ttr
O Ttr
O Ttr
O Ttr
I
A
I Tup
I Tup
O
T
Size
6mA
6mA
6mA
6mA
6mA
-
-
-
2mA
Function
Interrupt 5 of Legacy Audio
It is directly connected to the interrupt signal of
System I/O chip.
Interrupt 7 of Legacy Audio
Interrupt 9 of Legacy Audio
Interrupt 10 of Legacy Audio
Interrupt 11 of Legacy Audio.
Joystick Port
Joystick Port
MIDI Data Receive
MIDI Data Transfer
5. Miscellaneous (11-pin)
Name
ROMCS
I/O Type
O
T
ROMSK / VOLUP# IO Tup
ROMDO / VOLDW# IO Tup
ROMDI
XI24
XO24
LOOPF
I
Tup
I
C
O
C
I
A
GPIO[2:0]
IO Tup
TEST#
I Tup
Size
2mA
2mA
2mA
-
-
-
-
6mA
-
Function
Chip select for external EEPROM
Serial clock for external EEPROM
or Hardware Volume (Up)
Serial data output for external EEPROM
or Hardware Volume (Down)
Serial data input for external EEPROM
24.576 MHz Crystal
24.576 MHz Crystal
Capacitor for PLL
General purpose Input / Output
GPIO2 can use for a reset pin of Secondary AC’97.
LSI Test pin (Do not connect externally.)
June 28, 1999
-6-