H838076R Datasheet, PDF (475/669 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Super Low Power Series

Section 19 LCD Controller/Driver
Table 19.3 Segment Driver Selection
Bit 3: Bit 2: Bit 1: Bit 0:
SGS3 SGS2 SGS1 SGS0
0
0
0
0
1
1
0
1
1
0
0
1
1
0
1
1
0
0
0
1
1
0
1
1
0
0
1
1
0
1
Function of Pins SEG32 to SEG1
SEG32 to SEG28 to SEG24 to SEG20 to SEG16 to SEG12 to SEG8 to SEG4 to
SEG29 SEG25 SEG21 SEG17 SEG13 SEG9 SEG5 SEG1
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
Port
SEG
Port
Port
Port
Port
Port
Port
SEG
SEG
Port
Port
Port
Port
Port
SEG
SEG
SEG
Port
Port
Port
Port
SEG
SEG
SEG
SEG
Port
Port
Port
SEG
SEG
SEG
SEG
SEG
Port
Port
SEG
SEG
SEG
SEG
SEG
SEG
Port
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
Port
SEG
SEG
SEG
SEG
SEG
SEG
Port
Port
SEG
SEG
SEG
SEG
SEG
Port
Port
Port
SEG
SEG
SEG
SEG
Port
Port
Port
Port
SEG
SEG
SEG
Port
Port
Port
Port
Port
SEG
SEG
Port
Port
Port
Port
Port
Port
SEG
Port
Port
Port
Port
Port
Port
Port
19.3.2 LCD Control Register (LCR)
LCR controls LCD drive power supply and display data, and selects the frame frequency.
Initial
Bit
Bit Name Value R/W Description
7
—
1
—
Reserved
This bit is always read as 1 and cannot be modified.
6
PSW
0
R/W LCD Drive Power Supply Control
Can be used to turn off the LCD drive power supply
when LCD display is not required in power-down mode,
or when an external power supply is used. When the
ACT bit is cleared to 0 or in standby mode, the LCD
drive power supply is turned off regardless of the setting
of this bit.
0: LCD drive power supply is turned off
1: LCD drive power supply is turned on
Rev. 4.00 Aug 23, 2006 Page 403 of 594
REJ09B0093-0400