EM62100AGH datasheet(32/60 Pages) EMC

32 / 60 page

EM62100

65 COM/132 SEG STN LCD Driver

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Product Specification (V1.1) 09.13.2005

(This specification is subject to change without further notice)

When the reset command is used, only default settings (7) to (15) listed above are

executed.

The MPU interface, the RESB terminal is connected to the MPU reset terminal, making

the chip reinitialize simultaneously with the MPU. During power on, it is necessary to

reinitialize using the RESB terminal.

In the EM62100, if the internal liquid crystal power supply circuit is not used, it is

necessary to apply an “L” signal to the RESB terminal when the external liquid crystal

power supply is applied. Even though the oscillator circuit operates while the RESB

terminal is “L”, the display timing generator circuit is stopped, and the M, FLM, and

DOFB terminal is “H”, and the CKS terminal is fixed to “H” only when the internal

oscillator circuit is used. There is no influence on D0 to D7 terminals.

7 Command Register & Decoder

The EM62100 uses a combination of A0, RDB (E), and WRB (RW) signals to identify

the data bus signals. As the chip analyzes and executes each command using internal

timing clock only, regardless of external clock, its processing speed is very high and its

busy check is usually not required. The 8080 series MPU interface enters a read status

when a low pulse is input to the RDB (E) pin and to a write status when a low pulse is

input to the WRB (RW) pin. The 6800 series MPU interface enters a read status when

a high pulse is input to the RW pin and to a write status when a low pulse is input to the

RW pin. When there is a high pulse to the E pin, the command is activated. For timing

details, see AC characteristics section.

Taking the 8080 series MCU interface as an example, the commands are explained

below. Accordingly, in the command table and explanation, RDB (E) becomes high (1)

when 6800 series MPU interface reads the display data status. When the serial

interface is selected, the input data starts from D7 in sequence.

EM62100AGH Datasheet(PDF) 32 Page - ELAN Microelectronics Corp