PCF8537 datasheet(52/82 Pages) NXP

52 / 82 page

PCF8537

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 1 — 31 May 2012

52 of 82

NXP Semiconductors

PCF8537

Industrial LCD driver for multiplex rates up to 1:8

Bus interfaces

9.1 Control byte

After initiating the communication over the bus and sending the slave address (I2C-bus,

see Section 9.2) or subaddress (SPI-bus, see Section 9.3), a control byte follows. The

purpose of this byte is to indicate both, the content for the following data bytes (RAM or

command) and to indicate that more control bytes will follow.

Typical sequences could be:

• Slave address/subaddress - control byte - command byte - command byte - command

byte - end

• Slave address/subaddress - control byte - RAM byte - RAM byte - RAM byte - end

• Slave address/subaddress - control byte - command byte - control byte - RAM byte -

end

In this way, it is possible to send a mixture of RAM and command data in one access or

alternatively, to send just one type of data in one access.

Table 30.

Control byte description

Bit

Symbol

Binary value

Description

7CO

continue bit

last control byte

control bytes continue

6RS

command register

data register

5 to 0

not relevant

Fig 41. Control byte format

mgl753

not relevant

210

MSB

LSB

PCF8537 Datasheet(PDF) 52 Page - NXP Semiconductors

PCF8537 Datasheet(HTML) 52 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82

Datasheet Download

Link URL