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PCA2117DUGS/DA 数据表(PDF) 69 Page - NXP Semiconductors

部件名 PCA2117DUGS/DA
功能描述  Automotive LCD driver for character displays
PDF  107 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

PCA2117DUGS/DA 数据表(HTML) 69 Page - NXP Semiconductors

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PCA2117
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 4 — 8 April 2015
69 of 107
NXP Semiconductors
PCA2117
Automotive LCD driver for character displays
The acknowledgement after each byte is made only by the addressed PCA2117. After the
last display byte, the I2C-bus master issues a STOP condition (P). Alternatively a
repeated START may be issued to RESTART an I2C-bus access.
If a register readout is made, the R/W bit must be logic 1 and then the next data byte
following is provided by the PCA2117 as shown in Table 44.
Table 44.
Example: Reading from RAM by I2C-bus
Bits labeled as - are ignored.
Commands and signals
Values
1. Straight forward example
1.1 Select RAM bank and set address pointer
I2C-START
S
Slave address
0
1
1
1
0
1
SA0
R/W
0
Acknowledge from PCA2117
A
CO
0
RS[1:0]
0
0
-
-
-
-
-
Acknowledge from PCA2117
A
Command: Sel_mem_bank
0
0
0
1
0
SMB[2:0]
DDRAM
0
0
0
Acknowledge from PCA2117
A
Command: Set_mem_addr
1
ADD[6:0]
address 0h
0
0
0
0
0
0
0
Acknowledge from PCA2117
A
1.2 Select read RAM data
I2C-RESTART
Sr
Slave address
0
1
1
1
0
1
SA0
R/W
0
Acknowledge from PCA2117
A
CO
0
RS[1:0]
0
1
-
-
-
-
-
Acknowledge from PCA2117
A
I2C-RESTART
Sr
Slave address
0
1
1
1
0
1
SA0
R/W
1
Acknowledge from PCA2117
A
Command: Read_data
reading 0 to n byte
Acknowledge from master after
each byte
A
I2C-STOP
P



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