SHANGHAI SIMCOM LIMITED
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4.7 CTP interface
SIMT1502 contains one CTP interface, the panel is controlled by I2C bus.
See
Table4-7
and
Figure4-5
for more details.
Table4-7 CTP interface description
Signal
Pin#
Description
Direction
AI/AO
TS_INT_N
33
Touchscreen interrupt
DI
TS_I2C_SDA
34
Touchscreen I2C,SDA
B
TS_I2C_SCL
35
Touchscreen I2C,SCL
DO
TS_RST_N
36
Touchscreen reset
DO
Figure4-5 CTP application diagram
4.8 SD interface
SIMT1502 contains a SD interface, the clock output up to 200MHz,need support 1.8/2.95V
dual-voltage. If SD connector have detect pin, the hot plug function can be done.
See
Table4-8
and
Figure4-6
for more details.
Table4-8 SD interface description
Signal
Pin#
Description
Direction
AI
/A
O
SD_CARD_DET__N
37
Secure digital card detection
DI
SDC2_CMD
54
Secure digital controller 2 command
AI,AO
SDC2_DATA_0
55
Secure digital controller 2 data bit 0
AI,AO
SDC2_DATA_1
56
Secure digital controller 2 data bit 1
AI,AO
SDC2_DATA_2
57
Secure digital controller 2 data bit 2
AI,AO
SDC2_DATA_3
58
Secure digital controller 2 data bit 3
AI,AO
SDC2_CLK
59
Secure digital controller 2 clock
AI,AO
Summary of Contents for SIMT 1502
Page 37: ...SHANGHAI SIMCOM LIMITED 37...
