h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 547

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

This LSI has an on-chip segment type LCD control circuit, LCD driver, and power supply circuit,
enabling direct drive of an LCD panel.
17.1
Features of the LCD controller/driver are given below.
• Display capacity
• LCD RAM capacity
• The segment output pins can be used as ports.
• Common output pins not used because of the duty cycle can be used for common double-
• Choice of 11 frame frequencies
• A or B waveform selectable by software
• On-chip power supply split-resistance
• Display possible in operating modes other than standby mode and module stop mode
• Module stop mode
Duty Cycle
Static
1/2
1/3
1/4
8 bits × 20 bytes (160 bits)
Byte or word access to LCD RAM
SEG40 to SEG1 pins can be used as ports in groups of four.
buffering (parallel connection).
With 1/2 duty, parallel connection of COM1 to COM2, and of COM3 to COM4, can be used
In static mode, parallel connection of COM1 to COM2, COM3, and COM4 can be used
Access to registers and LCD RAM is enabled by clearing module stop mode.
Features
Section 17 LCD Controller/Driver
Internal Driver
40 SEG
40 SEG
40 SEG
40 SEG
Rev. 2.00 Dec. 05, 2005 Page 509 of 724
Section 17 LCD Controller/Driver
REJ09B0200-0200