DV-SP502/502E
IC BLOCK DIAGRAM/ TERMINAL DESCRIPTIONS
MT1389EE-L1 (DVDM ASSY : IC201)
DVD IC-6
No. Name Alt. I/O Function
90 ALE
Inout, 2-16MA,
SR, PU, SMT
Microcontroller address latch enable
79 IOOE# Inout, 2-16MA, SR, SMT Flash output enable, active low / IO
66 IOWR# Inout, 2-16MA, SR, SMT Flash write enable, active low / IO
77 IOCS#
Inout, 2-16MA,
SR, PU, SMT
Flash chip select, active low / IO
95 UWR#
Inout, 2-16MA,
SR, PU, SMT
Microcontroller write strobe, active low
96 URD#
Inout, 2-16MA,
SR, PU, SMT
Microcontroller read strobe, active low
98 UP1_2 Inout, 4MA, SR, PU, SMT Microcontroller port 1-2
99 UP1_3 Inout, 4MA, SR, PU, SMT Microcontroller port 1-3
100 UP1_4 Inout, 4MA, SR, PU, SMT Microcontroller port 1-4
101 UP1_5 Inout, 4MA, SR, PU, SMT Microcontroller port 1-5
102 UP1_6 SCL Inout, 4MA, SR, PU, SMT
Microcontroller port 1-6
I
2
C clock pin
103 UP1_7 SDA Inout, 4MA, SR, PU, SMT
Microcontroller port 1-7
I
2
C data pin
104 UP3_0 RXD Inout, 4MA, SR, PU, SMT
Microcontroller port 3-0
8032 RS232 RXD
105 UP3_1 TXD Inout, 4MA, SR, PU, SMT
Microcontroller port 3-1
8032 RS232 TXD
106 UP3_4 RXD SCL Inout, 4MA, SR, PU, SMT
Microcontroller port 3-4
Hardwired RD232 RXD
I
2
C clock pin
107 UP3_5 TXD SDA Inout, 4MA, SR, PU, SMT
Microcontroller port 3-5
Hardwired RD232 TXD
I
2
C data pin
111 IR Input, SMT IR control signal input
112 INT0#
Inout, 2-16MA,
SR, PU, SMT
Microcontroller external interrupt 0, active low
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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