Data Sheet

Product Specification
Ver 1.2  27 / 43
7-3) Panel AC Characteristics
7-3-1) Oscillator frequency
The following specifications apply for : VSS = 0V, VCI = 3.3V, T
A
= 25℃
Parameter Symbol Conditions Min Typ Max Unit
Internal Oscillator frequency Fosc VCI=2.3 to 3.6V - 1.625 - MHz
7-3-2) MCU Interface
7-3-2-1) MCU Interface Selection
In this module, there are 4-wire SPI and 3-wire SPI that can communicate with MCU. The MCU interface mode can be set by hardware
selection on BS pins. When it is “Low”, 4-wire SPI is selected. When it is “High”, 3-wire SPI (9 bits SPI) is selected.
Pin Name Data/Command Interface Control Signal
Bus interface D1 D0 CSB DC RST_N
SPI4 SDA SCL CSB DC RST_N
SPI3 SDA SCL CSB L RST_N
Table 7-1: MCU interface assignment under different bus interface mode
Note 7-2: L is connected to VSS
Note 7-3: H is connected to VCI
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