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MOTOROLA MSC8101ADS RevB User’s Manual 23
Installation Instructions
FIGURE 3-6 P4 - Host I/F Connector
3•7 Terminal to MSC8101ADS RS-232 Connection
A serial (RS232) terminal or any other RS232 equipment, may be connected to both connectors
P27/A-B (Upper and Lower). This connectors are a 9 pin, female, D-type connectors, arranged in
a stacked configuration. P27A connected to SCC1 of the MSC8101 is the lower and P27B,
connected to SMC1 of the MSC8101, is the upper in the stack.
The connectors are arranged in a manner that allows for 1:1 connection with the serial port of an
IBM-AT
A
or compatibles, i.e. via a flat cable. The pinout which is not identical - P27A supports DTE
to DCE connection unlike it the P27B supports Null Modem connection (DTE to DTE). The
difference is shown in FIGURE 3-7 and FIGURE 3-8.
A. IBM-AT is a trademark of International Business Machines Inc.
1
3
5
7
9
2
4
6
8
10
HD0
HD2
HD12
HD8
11
12
13 14
15 16
HD14
HD6
HD10
HD4
17
19
21
23
25
18
20
22
24
30
27
29
31
3433
35
26
28
32
36
GND
HA0
HA2
HCS1
HRRQACK
HRDRW
HRESET
GND
3.3V
GND
HD1
HD3
HD13
HD9
HD15
HD7
HD11
HD5
GND
GND
HA1
HA3
HCS2
HREQ
HDS
PORST
N.C.
GND
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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