Qdatasheet_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

PCF8536AT/1 View Datasheet(PDF) - NXP Semiconductors.

Part Name
Description
MFG CO.
'PCF8536AT/1' PDF : 74 Pages View PDF
NXP Semiconductors
PCF8536
Universal LCD low multiplex driver with 6 channel PWM generator
8.9.3 RAM filling in 1:6 multiplex drive mode
In the 1:6 multiplex drive mode the RAM is organized in six rows and 42 columns. The
eight transmitted data bits are placed in such a way, that a column is filled up (see
Figure 23).
Rows
Display RAM
bits (rows)/
backplane outputs
(BP)
Columns
Display RAM addresses (columns)/segment outputs (S)
012 34 56 7
0 a7 a1 b3 c5
1 a6 a0 b2 c4
2 a5 b7 b1 c3
3 a4 b6 b0 c2
4 a3 b5 c7 c1
5 a2 b4 c6 c0
37 38 39 40 41
MSB
LSB
a7 a6 a5 a4 a3 a2 a1 a0
b7 b6 b5 b4 b3 b2 b1 b0
c7 c6 c5 c4 c3 c2 c1 c0
Transmitted data bytes
013aaa457
Fig 23. Display RAM filling order in 1:6 multiplex drive mode
The remaining bits are wrapped over into the next column. In order to fill the whole RAM,
31 and a half bytes need to be sent to the PCF8536. After the last byte sent, the data
pointer must be reset before the next RAM content update. Additional data bytes sent and
any data bits that spill over the RAM will be discarded. Depending on the start address of
the data pointer, there are three possible boundary conditions. See Figure 24.
PCF8536
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 6 October 2011
© NXP B.V. 2011. All rights reserved.
38 of 74
Share Link: GO URL

All Rights Reserved © qdatasheet.com  [ Privacy Policy ] [ Contact Us ]