MT1389E
PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE
MTK CONFIDENTIAL, NO DISCLOSURE
6
MTK Confidential A
Pin Main Alt.
Type Description
93 UP1_6 SCL
InOut
4mA, SR
PU, SMT
1)
Microcontroller port 1-6
2)
I
2
C clock pin
94 UP1_7 SDA
InOut
4mA, SR
PU, SMT
1)
Microcontroller port 1-7
2)
I
2
C data pin
95 UP3_0 RXD
InOut
4mA, SR
PU, SMT
1)
Microcontroller port 3-0
2)
8032 RS232 RxD
96 UP3_1 TXD
InOut
4mA, SR
PU, SMT
1)
Microcontroller port 3-1
2)
8032 RS232 TxD
97 UP3_4
RXD
SCL
InOut
4mA, SR
PU, SMT
1)
Microcontroller port 3-4
2)
Hardwired RD232 RxD
3)
I
2
C clock pin
98 UP3_5
TXD
SDA
InOut
4mA, SR
PU, SMT
1)
Microcontroller port 3-5
2)
Hardwired RD232 TxD
3)
I
2
C data pin
102 IR
Input
SMT
IR control signal input
103 INT0#
InOut
4~16mA, SR
PU, SMT
Microcontroller external interrupt 0, active low
Audio interface (28)
153
ALRCK
YUV1
GPO
InOut
4mA,
PD, SMT
1)
Audio left/right channel clock
2)
Trap value in power-on reset:
I)
1: use external 373
II)
0: use internal 373
3)
While internal audio DAC used:
I)
Digital video YUV output 1
II)
GPO
151
ABCK
YUV0
GPIO
InOut
4mA
1)
Audio bit clock
2)
While internal audio DAC used:
I)
Digital video YUV output 0
II)
GPIO
152
ACLK
YUV0
GPIO
InOut
4mA
SMT
1)
Audio DAC master clock
2)
While internal audio DAC used:
I)
Alternate digital video YUV output 0
II)
GPIO
