SNC88120
24-Channel MIDI/Speech Controller
3 PIN ASSIGNMENT
Symbol
P00 ~ P07
P10 ~ P17
P20 ~ P27
VDDVR
GNDVR
VDDPP
GNDPP
CVDD
VDD
GND
REGOUT
RST
XIN
XOUT
LXIN
LXOUT
CKSEL
TestM
VO1
VO2
BN0
BP0
I/O
I/O
I/O
I/O
P
P
P
P
P
P
P
P
I
I
O
I
O
I
I
O
O
O
O
Function Description
Bit7 ~ Bit0 of I/O port 0
Bit7 ~ Bit0 of I/O port 1
Bit7 ~ Bit0 of I/O port 2
Positive power supply for ROSC
Negative power supply for ROSC
Positive power supply for Direct Drive
Negative power supply for Direct Drive
Positive power supply for internal circuit
Positive power supply for I/O
Negative power supply
3V regulator output
Chip Reset (Active low)
High clock Crystal In
High clock Crystal Out
Low clock Crystal In
Low clock Crystal Out
Clock type select
‘
VDD’ RC oscillator
‘
GND’Crystal
Test Pin
DA1 output
DA2 output
Direct Drive negative output
Direct Drive positive output
Ver: 1.5
4
Sep. 8, 2006
SONIX [ SONIX TECHNOLOGY COMPANY ]
