Panasonic JS-170FR Series, Руководство по обслуживанию

Страница: 48 / 161

2-18
2.1.5.2 Serial port (COM1, 2)
The IT8673 incorporates the two 16C550 compatible serial port controllers (UART1 and UART2).
The 24MHz signal (fixed) is 13-frequency-divided into 1.8462MHz that is then used to produce a Baud rate clock. This port
operates in an asynchronous mode.
The two controllers are independent of each other. By setting up a configuration port with software, address and interrupt
assignment can be carried out.
The basic setting for this system is as specified below.
IT8673F System I/O address Interrupt level
UART1 COM1 3F8h-3FFh IRQ4
UART2 COM2 OUT IRQ3
EN SHDN
T1IN
T2IN
T3IN
T4IN
R1OUT
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
R4IN
R5IN
R2OUT
R3OUT
R4OUT
R5OUT
EN
SHDN
T1IN
T2IN
T3IN
T4IN
R1OUT
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
R4IN
R5IN
R2OUT
R3OUT
R4OUT
R5OUT
MA X 2 1 1
7
6
2 0
2 1
8
5
2 6
2 2
1 9
2 5
2
3
1
2 8
9
4
2 7
2 3
1 8
2 4
TXD1
DTR1
RTS1
RXD1
DSR1
CT S1
DCD1
R I 1
4 9
5 3
5 1
4 8
5 0
5 2
5 5
5 4
3 A
4 A
7 A
2 A
6 A
8 A
1 A
9 A
5 A
L
L
L
L
L
L
L
L
COM1 T X D
COM1 DT R
COM1 RT S
COM1 RX D
COM1 DS R
COM1 CT S
COM1 CD
COM1 R I
COM1 GND
MA X 2 1 1
7
6
2 0
2 1
8
5
2 6
2 2
1 9
2 5
2
3
1
2 8
9
4
2 7
2 3
1 8
2 4
TXD2
DTR2
RTS 2
RXD2
DSR2
CTS 2
DCD2
R I 2
5 9
6 3
6 1
5 8
6 0
6 2
5 7
5 6
3 B
4 B
7 B
2 B
6 B
8 B
1 B
9 B
5 B
L
L
L
L
L
L
L
L
COM2 T X D
COM2 DT R
COM2 RT S
COM2 RX D
COM2 DS R
COM2 CT S
COM2 CD
COM2 RI
COM2 GND
I T 8 6 7 3 F
RE S E T D RV
A D M2 1 1
A D M2 1 1