MSC1205 查看數據表（PDF） - Oki Electric Industry

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MSC1205

32-Bit Duplex Controller/Driver with Digital Dimming Function

Oki Electric Industry 

¡ Semiconductor

MSC1205

FUNCTIONAL DESCRIPTION

DATA Input

This device uses 10-bit dimming and 64-bit segment data.

In order to transfer this data, the enable bit (M0) and mode bit (M1) should be set to an initial state.

The data format is shown below.

DATA

CLOCK

M0 M1 D1 D2

D10

M0 M1 S1 S2

S63 S64

Figure 1. Data Transfer Timing

M0 : This bit is an enable bit.

M0 = "0" : Subsequent data is disabled; preceding data is held.

M0 = "1" : The beginning of data transfer. The following data is clocked in sequentially.

M1 : This bit is used to select the mode.

M1 = "0" : Subsequent data is handled as the segment data.

M1 = "1" : Subsequent data is handled as the dimming data.

D1 : LSB of dimming data.

S1 : data for grid1 of SEG1.

S2 : data... for grid1 of SEG2.

S32 : data for grid1 of SEG32.

S33 : data... for grid2 of SEG1.

S64 : data for grid2 of SEG32.

Notes: 1. Be sure to set the enable bit to "1" before data is transferred. Data following M0 is

handled to be enable. If data is input with the enable bit not set to "1", the first "1"

data coming next is handled as the enable bit.

2. If the number of the data bits applied is greater (for example, 67 bits are applied

for the segment data of 64 bits), the data bits are pushed out in the same order

that they are applied, and thus S1, S2, and S3 are ignored.

3. If the number of the data bits applied is smaller (for example, 62 bits are applied

for the segment data of 64 bits), S63 and S64 prior to data transfer are shifted to S1

and S2 respectively.

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