STR-DA5500ES
167
NETWORK BOARD IC8204 TL16C550DPTR (PARALLEL/SERIAL CONVERTER)
Pin No.
Pin Name
I/O
Description
1
NC
-
Not used
2 to 4
D5 to D7
I/O
Two-way data bus with the
fl
ash ROM, connected media processor and parallel bus/I2C bus
converter
5
RCLK
I
Clock signal input from the BAUDOUT terminal (pin 16)
6
NC
-
Not used
7
SIN
I
Serial data input from the RS232C connector
8
SOUT
O
Serial data output to the RS232C connector
9, 10
CS0, CS1
I
Chip select signal input terminal Not used
11
CS2_N
I
Chip select signal input from the connected media processor
12
BAUDOUT
O
Clock signal output to the RCLK terminal (pin 5)
13
NC
-
Not used
14
XIN
I
System clock input terminal (3.6864 MHz)
15
XOUT
O
System clock output terminal (3.6864 MHz)
16
WR1
I
Write enable signal input from the connected media processor
17
WR2
I
Write enable signal input terminal Not used
18
Vss
-
Ground terminal
19
RD1
I
Read enable signal input from the connected media processor
20
RD2
I
Read enable signal input terminal Not used
21
NC
-
Not used
22
DDIS
O
Driver disenable signal output terminal Not used
23
TXRDY
O
Transmitter ready signal output terminal Not used
24
ADS
I
Address strobe signal input terminal Not used
25
NC
-
Not used
26
A2
I
Address signal input form the connected media processor
27
A1
I
Address latch enable signal input form the connected media processor
28
A0
I
Command latch enable signal input from the connected media processor
29
RXRDY
O
Receiver ready signal output terminal Not used
30
INTRPT
O
Interrupt signal output to the connected media processor
31
OUT2
O
Not used
32
RTS
O
Request to send signal output terminal Not used
33
DTR
O
Data terminal ready signal output terminal Not used
34
OUT1
O
Not used
35
MR(RESET)
I
Reset signal input from the connected media processor “L”: reset
36, 37
NC
-
Not used
38
CTS
I
Clear to send signal input terminal Not used
I
Data setting ready signal input terminal Not used
I
Data career detection signal input terminal Not used
I
Modem status signal input terminal Not used
-
Power supply terminal (+3.3V)
I/O
Two-way data bus with the
fl
ash ROM, connected media processor and parallel bus/I2C bus
converter
-
Not used
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