YMF724F
3. YMF727(AC3F2) Interface (9-pin)
name
I/O
type
size
function
XRST#
ACS#
O
O
O
O
I
C
T
2mA
3mA
6mA
3mA
-
Reset for local device
Chip select for AC3F2
ASCLK
ACDO
ACDI
T
Clock for Serial control data transfer of AC3F2
Serial control data output of AC3F2
Serial control data input of AC3F2
L/R clock for Serial audio data of AC3F2
Bit clock for Serial audio data of AC3F2
Serial audio data output to AC3F2
Mixed Serial audio data input of AC3F2
T
Tup
T
ALRCK
ABCLK
ASDO
ASDI
O
O
O
I
3mA
6mA
3mA
-
T
T
Tup
4. SPDIF Interface (1-pin)
name
I/O
O
type
T
Size
function
DIT
3mA
Digital audio interface output (48kHz)
5. Legacy Device Interface (16-pin)
name
I/O
O
type
Ttr
Size
function
IRQ5
12mA Interrupt5 of Legacy Audio
It is directly connected to the interrupt signal of
System I/O chip.
IRQ7
O
O
O
O
I
Ttr
Ttr
Ttr
Ttr
A
12mA Interrupt7 of Legacy Audio
12mA Interrupt9 of Legacy Audio
12mA Interrupt10 of Legacy Audio
12mA Interrupt11 of Legacy Audio.
IRQ9
IRQ10
IRQ11
GP[3:0]
GP[7:4]
GREF
RXD
-
Game Port
I
Tup
A
-
Game Port
I
-
-
Reference for Game Port
MIDI Data Receive
MIDI Data Transfer
I
Tup
T
TXD
O
3mA
January 14, 1999
-5-
YAMAHA [ YAMAHA CORPORATION ]
