Fujitsu SK-MB91590-208M04 User Manual - Page 25

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4.16. The connection can be better understood by the following snapshot from the

schematic.

The initialization requires the writing of 0xF800 at the address location 0xC5 of the Display

driver. If you face any problems, please check the jumper settings for Display SPI or refer to

application notes related to the Display's driver IC HX8238-A for detailed understanding of

its configuration.

UART1_UART1_RDR1 = 0xFF & (0xF800 >> 8); ///< Data for Register 5 low byte

while(!UART1_UART1_SSR1_TDRE);

UART1_UART1_RDR1 = 0x00FF & 0xF800; ///< Data for Register 5 high byte

while(!UART1_UART1_SSR1_TDRE);

The following pins are dedicatedly used by Display Connector X3 are:

1) Pins P025, PG4, PG5, PG6, PG7, PA2, PA3

2) Complete ports D, E, F.

6.3 Miniature Loudspeaker (SP1)

The Miniature Loudspeaker is connected to the output of MCU's Sound Generator channel 4

module. The SGO4_1/P107 pin is used dedicatedly by the audio amplifier circuitry of the

loudspeaker as shown by its schematic below.

Chapter 6 Dedicated Peripheral Devices

Figure 9. Connection of MCU's MFS channel 1 to Displays's SPI

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