Pioneer DV-575A-S Service Manual page 90

1
No. Name
90 ALE
A
79 IOOE#
66 IOWR#
77 IOCS#
95 UWR#
96 URD#
98 UP1_2
B
99 UP1_3
100 UP1_4
101 UP1_5
102 UP1_6 SCL
103 UP1_7 SDA
104 UP3_0 RXD
105 UP3_1 TXD
C
106 UP3_4 RXD
107 UP3_5 TXD
111 IR
112 INT0#
D
E
F
90
1
2
Alt. I/O
Inout, 2-16MA,
SR, PU, SMT
Inout, 2-16MA, SR, SMT
Inout, 2-16MA, SR, SMT
Inout, 2-16MA,
SR, PU, SMT
Inout, 2-16MA,
SR, PU, SMT
Inout, 2-16MA,
SR, PU, SMT
Inout, 4MA, SR, PU, SMT Microcontroller port 1-2
Inout, 4MA, SR, PU, SMT Microcontroller port 1-3
Inout, 4MA, SR, PU, SMT Microcontroller port 1-4
Inout, 4MA, SR, PU, SMT Microcontroller port 1-5
Inout, 4MA, SR, PU, SMT
Inout, 4MA, SR, PU, SMT
Inout, 4MA, SR, PU, SMT
Inout, 4MA, SR, PU, SMT
SCL Inout, 4MA, SR, PU, SMT
SDA Inout, 4MA, SR, PU, SMT
Input, SMT
Inout, 2-16MA,
SR, PU, SMT
DV-575A-S
2
3
Function
Microcontroller address latch enable
Flash output enable, active low / IO
Flash write enable, active low / IO
Flash chip select, active low / IO
Microcontroller write strobe, active low
Microcontroller read strobe, active low
Microcontroller port 1-6
2
I C clock pin
Microcontroller port 1-7
2
I C data pin
Microcontroller port 3-0
8032 RS232 RXD
Microcontroller port 3-1
8032 RS232 TXD
Microcontroller port 3-4
Hardwired RD232 RXD
2
I C clock pin
Microcontroller port 3-5
Hardwired RD232 TXD
I 2 C data pin
IR control signal input
Microcontroller external interrupt 0, active low
3
4
4