KMA199E.115 NXP Semiconductors, KMA199E.115 Datasheet - Page 16

• Manufacturer Part Number: KMA199E.115
• Manufacturer: NXP Semiconductors

Specifications of KMA199E.115

• Operating Temperature (min): -40C
• Operating Supply Voltage (typ): 5V
• Lead Free Status / Rohs Status: Compliant

NXP Semiconductors
KMA199E_1
Product data sheet
13.3.1 Write access
A more detailed description of all registers, that can be accessed by the customer, is given
in
the address and write or read request respectively, is listed there.
In order to write data into the EEPROM, the internal charge pump must be enabled at first
by setting the bits EEP_CP_CLOCK_EN and EEP_WRITE_EN and waiting for t
Afterwards the following procedure must be done:
Figure 13
data on the bus, which is either caused by the master or by the slave. The signals master
output enable and slave output enable just symbolize if the master or the slave output is
enabled or disabled respectively.
Note: As already mentioned in
using the write procedure. Without entering the command mode a digital communication
is not possible and the sensor would work in normal operation mode. After changing a
single address the time t
checksum has to be recalculated and written, after changing the EEPROM constants
(see
Fig 13. OWI write access
•
•
•
•
Section
master
enable
enable
Start condition: The master drives a rising edge after a LOW level
Command: The master sends a write command, that is the last bit is not set
Data: The master sends two data bytes
Stop condition: The master drives a rising edge after a LOW level
output
output
(1) Missing rising edges generate a time-out condition and the written data is ignored.
(2) If the master might not drive the bus, the bus is defined by the bus-pull.
slave
Section
OWI
shows the write access of the digital interface. The signal OWI represents the
13.5. Both default value and the complete command, which already includes
START
13.4).
CMD7
Rev. 01 — 18 October 2007
prog
must elapse before changing another address. Finally the
Section
CMD0
13.1, even the command mode has to be entered
WDATA15
Programmable angle sensor
WDATA0
KMA199E
(1)
STOP
© NXP B.V. 2007. All rights reserved.
001aag743
cp
IDLE
(2)
.
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