MSC COM Express C6-MB-EVA, User Manual

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MSC C6-MB-EVA - PRELIMINARY - User Manual
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4.23.1 SIO Configuration
The SIO strap options can be changed via DIP switches S2902 and S2905.
Switch Signal name ON
OFF
S2902 #1 48MHz_EN Enable 48MHz (default) Enable 24MHz
S2902 #2 PNP_ADR
Reset FDC UARTs LPT
setting No reset FDC UARTs
LPT setting
S2902 #3 4EH_ENA
SIO address 4EH
(default) SIO address 2EH
S2902 #4 KBD_EN Enable KBC
Disable KBC
S2905 #1 SIO_RST_N Enable SIO
Disable SIO
Table 31 SIO Configuration
4.23.2 Parallel Port
Specification:

References: X2304

Connector:26 pin IDC-M

Pin-out: Refer to Table 32
Pin Signal name Signal name
Pin
1 STB# AFD#
2
3 PD0 ERR#
4
5
PD1
INIT#
6
7
PD2
SLIN#
8
9
PD3
GND
10
11
PD4
GND
12
13
PD5
GND
14
15
PD6
GND
16
17
PD7
GND
18
19
ACK#
GND
20
21 BUSY GND
22
23 PE GND
24
25 SLCT VCC n.c.
26
Table 32 Pin-out LPT Port
4.23.3 COM Ports COM1 COM2
Characteristics of the COM ports:

RS232 standard

RS232 transceiver ESD pro/- 15kV

EMC improved by using EMI filters in the signal lines
Specification:

References: X2301 (COM1), X2302 (COM2)

Connector:10 pin IDC-M

Pin-out: Refer to Table 33 Pin-out COM Ports