6-18
Computer Group Literature Center Web Site
Functional Description
6
The MX function is implemented using PALs and some discrete devices.
MXSYNC# is clocked out using the falling edge of MXCLK, and MXDO
by using the rising edge of the MXCLK. MXDI is sampled at the rising
edge of MXCLK (the transition module synchronizes MXDI with
MXCLK’s rising edge). The timing relationships among MXCLK,
MXSYNC#, MXDO, and MXDI are illustrated by the following figure:
Table 6-2. Multiplexing Sequence of the MX Function
MXDO
(From MCPN750A)
MXDI
(From TMCPN710 & TM-PIMC-0001)
TIME SLOT
SIGNAL NAME
TIME SLOT
SIGNAL NAME
0
RTS3
0
CTS3
1
DTR3
1
DSR3
2
RTS1
2
DCD3
3
RTS2
3
CTS1
4
RTS4
4
RI3
5
DTR4
5
CTS4
6
Reserved
6
DSR4
7
Reserved
7
DCD4
8
Reserved
8
CTS2
9
DTR1
9
RI4
10
DTR2
10
RI1
11
Reserved
11
DSR1
12
Reserved
12
DCD1
13
Reserved
13
RI2
14
Reserved
14
DSR2
15
Reserved
15
DCD2
Содержание MCPN750A
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