User's Manual

SHANGHAI SIMCOM LIMITED
25
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