Led Control; Led Register (Ledr); Lcd Front Light Control - Renesas SH7727 General Information Manual

R0P7727TH003TRKE General Information Manual

6.7 LED Control

This section describes the LED control functions. Table 6.7 summarizes the LED control registers.
Though SH7727 T-Engine has not been provided with LED1 to LED8, LED control is executed.
(1) Controlling the ON/OFF State of LEDs (LED1 to LED8) on the CPU board
Register
LED register

6.7.1 LED Register (LEDR)

Address: 0x00A0 Initial value: 0xXX
D7 D6
LED8 LED7
R/W R/W
(1) LEDn
LEDn bit
0
1
LEDn is turned ON for the H8/3048F-ONE firmware version at the power-on sequence.

6.8 LCD Front Light Control

This section describes the LCD light control functions. In addition, Table 6.8 summarizes the front light control
registers.
(1) Controlling the ON/OFF state of the LCD front light
Register
LCD front light register
Table 6.7 LED control register
Abbreviation
LEDR
D5 D4
LED6 LED5
R/W R/W
LEDn is turned OFF.
LEDn is turned ON.
Table 6.8 LCD front light register
Abbreviation
LCDR
Address R/W
0x00A0 R/W
D3 D2
LED4 LED3 LED2
R/W R/W R/W
Setting
Address R/W
0x00A1 R/W
82
Power Supply Controller
Size Remarks
1 byte
D1 D0
LED1
R/W
Size Remarks
1 byte