User guide

M33 EVB User Guide
Table 13: Pins of J102
Pin Signal I/O Description
1 KCOL0 I
2 KROW0 O
3 KCOL1 I
4 KROW1 O
5 KCOL2 I
6 KROW2 O
7 KCOL3 I
8 KROW3 O
9 KCOL4 I
10 KROW4 O
Keypad interface
3.8.4 J108 Test Points
Figure 19: J108 test points
Table 14: Pins of J108
Pin Signal I/O Description
1 RXD2 I Receive data of Serial Port 2
2 RXD3 I Receive data of Serial Port 3
3 TXD3 O Transmit data of Serial Port 3
4 TXD2 O Transmit data of Serial Port 2
5 RESERVE
6 PCM_CLK O Serial bit clock of PCM interface
7 RESERVE
8 PCM_IN I Digital audio data input of PCM interface
9 PCM_SYNC O Frame synchronization of PCM interface
10 PCM_OUT O
Digital audio data output of PCM
interface
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