User guide

M80 EVB User Guide
M80_EVB_UGD_V1.2 - 31 -
Table 14: LED indicator
Part
Name
I/O
Description
Note
L1
VBAT ON/OFF indicator
O
Bright: VBAT ON
Extinct: VBAT OFF
L2
RESERVED
L3
GSM_NET status
indicator
O
Blinking at a certain frequency
according to various GSM network
status
L4
Module status indicator
O
Indicate module’s operating status
3.10. LCD
M80 provides serial LCD interface including both four lines mode and three lines mode. The
maximum resolution is up to 240 x 320. The EVB board reserves the test points for the
measurement of signal.
Figure 33: Test points of LCD
3.11. Keyboard
M80 provide s 5*5 matrix keyboard. The following figure shows the test points.
LS_DIO
LS_CS
LS_CMD
LS_CLK
LS_RST
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