参数资料
型号: mPD789322
厂商: NEC Corp.
元件分类: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器与2/4/8K字节在系统可编程闪存
文件页数: 46/96页
文件大小: 482K
代理商: MPD789322
Preliminary Product Information U14673EJ1V0PM00
50
PD789322,789324,789326,789327
5.7 LCD Controller/Driver
5.7.1 LCD controller/driver functions
The LCD controller/driver incorporated in the
PD789322, 789324, 789326, and 789327 has the following
features.
(1) Segment and common signals based on the automatic reading of the display data memory can be
automatically output
(2) Four types of frame frequencies are selectable
(3) 24 segment signal outputs (S0 to S23), 4 common signal outputs (COM0 to COM3)
(4) Operation with a subsystem clock is possible
The maximum number of displayable pixels is shown in Table 5-12 below.
Table 5-12. Maximum Number of Display Pixels
Bias Method
Time Division
Common Signals Used
Maximum Number of Display Pixels
1/3
4
COM0 to COM3
96 (24 segments
× 4 commons)
Note The LCD panel of the figure
consists of 12 rows with 2 segments per row.
5.7.2 LCD controller/driver configuration
The LCD controller/driver consists of the following hardware.
Table 5-13. Configuration of LCD Controller/Driver
Item
Configuration
Display outputs
Segment signals: 24
Common signals: 4
Control registers
LCD display mode register 0 (LCDM0)
LCD clock control register 0 (LCDC0)
Port function register 8 (PF8)
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MPD789322GB-XXX-8ET 制造商:NEC 制造商全称:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER
MPD789324 制造商:NEC 制造商全称:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER
MPD789324GB-XXX-8ET 制造商:NEC 制造商全称:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER
MPD789326 制造商:NEC 制造商全称:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER
MPD789326GB-XXX-8ET 制造商:NEC 制造商全称:NEC 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLER