VSX-74TXVi
258
1
2
3
4
1
2
3
4
C
D
F
A
B
E
Pin Function
No.
Pin Name
I/O
Function in Slave Mode
Function in MasterMode
1
LSDP_TXRX
S=I, M=O Low speed data port output
Low speed data port input
2
VSS
−
Digital ground
Digital ground
3
SC_TX_OUT
S=O, M=O System controller bus (CBM) transmit data out
System controller bus (CBM) transmit data out
4
VDD
−
+3.3V supply voltage
+3.3V supply voltage
5
SC_RX_IN
S=I, M=I
System controller bus (CBM) receive data in
System controller bus (CBM) receive data in
6
VSS
−
Digital ground
Digital ground
7
COMMAND_SEL
S=I, M=I
Command mode select in (1= Command mode, 0= Normal mode) Command mode select in (1= Command mode, 0= Normal mode)
8
VDD
−
+3.3V supply voltage
+3.3V supply voltage
9
IRQ#
S=O, M=O Interrupt request out (Active Low)
Interrupt request out (Active Low)
10
VSS
−
Digital ground
Digital ground
11
RESET#
S=I, M=I
Asynchronous reset in (Active Low)
Asynchronous reset in (Active Low)
12
SLAVE_SEL
S=I, M=I
M/S mode select in (High= Slave mode)
M/S mode select in (Low= Master mode)
13
COMM_RX_DIG
S=I, M=I
DT comm bus external transceiver receive data in DT comm bus external transceiver receive data in
14
COMM_TX_DIG
O
DT comm bus external transceiver transmit data out DT comm bus external transceiver transmit data out
15
COMM_TX_EN
O
DT comm bus external transceiver direction out
(1= Transmit, 0= Receive)
DT comm bus external transceiver direction out
(1= Transmit, 0= Receive)
16
VSS
−
Digital ground
Digital ground
17
VDD
−
+3.3V supply voltage
+3.3V supply voltage
18
COMM_RX_P
S=I, M=I
DT comm bus internal receiver differential positive in DT comm bus internal receiver differential positive in
19
COMM_RX_M
S=I, M=I
DT comm bus internal receiver differential negative in DT comm bus internal receiver differential negative in
20
VDD
−
+3.3V supply voltage
+3.3V supply voltage
21
VSS
−
Digital ground
Digital ground
22
COMM_TX_M
O
DT comm bus internal transmitter differential negative out DT comm bus internal transmitter differential negative out
23
COMM_TX_P
O
DT comm bus internal transmitter differential positive out
DT comm bus internal transmitter differential positive out
24
VSS
−
Digital ground
Digital ground
25
VSS
−
Digital ground
Digital ground
26
OSC_OUT
O
Crystal output
Crystal output
27
VDD
−
+3.3V supply voltage
+3.3V supply voltage
28
OSC_IN
S=I, M=I
Crystal input
Crystal input
29
VSS
−
Digital ground
Digital ground
30
TEST
S=I, M=I
Factory test mode select (1= Test, 0= Normal oper.)
Factory test mode select (1= Test, 0= Normal oper.)
31
VSS
−
Digital ground
Digital ground
32
HSDP_DATA
S=I, M=O High speed data port data input
High speed data port data output
33
VDD
−
+3.3V supply voltage
+3.3V supply voltage
34
HSDP_CLK
S=I, M=O High speed data port clock input
High speed data port clock output
35
VSS
−
Digital ground
Digital ground
36
HSDP_EN
S=O, M=I High speed data port enable output
High speed data port enable input
37
I2S_DATA
S=I, M=O I2S digital port data in
I2S digital audio port data out
38
VSS
−
Digital ground
Digital ground
39
I2S_SCLK
S=I, M=O I2S digital audio port bit clock in
I2S digital audio port bit clock out
40
VDD
−
+3.3V supply voltage
+3.3V supply voltage
41
I2S_LRCLK
S=I, M=O I2S digital audio port L/R clock in
I2S digital audio port L/R clock out
42
VSS
−
Digital ground
Digital ground
43
I2S_OCLK
S=I, M=O I2S digital audio port oversample clock (Not used.)
I2S digital audio port oversample clock out
44
VSS
−
Digital ground
Digital ground
45
SAII_CLK
S=O, M=I SAII port clock output
SAII port clock input
46
VDD
−
+3.3V supply voltage
+3.3V supply voltage
47
SAII_DATA
S=O, M=I SAII port data output
SAII port data input
48
SAII_REQ
S=I, M=O SAII port request input
SAII port request output