eZ80F92 Development Kit
User Manual
Operational Description
PRELIMINARY
UM013904-0203
28
Embedded Modem Socket Interface
The eZ80
®
Development Platform features a socket for an optional 56K
modem (a modem is not included in the kit).
Connectors J1, J5, and J9 provide connection capability. The modem
socket interface provided by these three connectors is shown in Figure 9.
Tables 10 through 12 identify the pins for each connector. The embedded
modem utilizes UART1, which is available via the Port C pins.
Figure 9. Embedded Modem Socket Interface—J1, J5, and J9
Table 10. Connector J5
Pin Symbol
Description
1
M-TIP
Telephone Line Interface—TIP.
2
M-RING
Telephone Line Interface—RING.
J5
J9
J1
1
2
4
24
25
26
27
28
29
30
31
32
2
1
3
6
7
8
9