N40P112 austriamicrosystems, N40P112 Datasheet - Page 21

• Manufacturer Part Number: N40P112
• Description: SW NAV JOYSTICK MOD CONTACTLESS
• Manufacturer: austriamicrosystems
• Series: EasyPoint™r
• Type: Navigation Switch, PCB Mountr

Specifications of N40P112

• Output: Contactless Magnetic Switch
• Switch Function: 2 Axis with Select
• Actuator Type: Joystick
• Termination Style: SMD (SMT) Tab
• Operating Force: 35/180gf
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Contact Rating @ Voltage: -

EasyPoint
Datasheet - I ² C i n t e r f a c e
10.4.5 High Speed Mode
The N40P112 is capable to work in HS-mode.
For switching to HS-mode the Master has to send the sequence: START, MASTER CODE, NACK. This sequence is sent in FS-mode. As no
device is allowed to acknowledge the master code, the master code is followed by a not-acknowledge. After a device receives the master code it
has to switch from FS-settings to HS-settings within t
receive a STOP command. After receiving a STOP command it has to switch back form HS-settings to FS-settings, which has to be competed
within the minimum bus free time t
When switching to HS-mode the slave has to
Figure 15. Data Transfer Format in HS-mode
Figure 16. A Complete HS-mode Transfer
www.austriamicrosystems.com/N40P112
Adapt the SDAH and SCLH input filters according to the spike suppression requirement required in HS-mode. In HS-mode spikes up to
10ns, in FS-mode spikes up to 50ns have to be suppressed.
Adapt the setup and hold times according to the HS-mode requirement. In HS-mode an internal hold time for SDA for START/STOP
detection of 80ns (max. 150ns), in FS-mode an internal hold time of 160ns (max. 250ns) has to be provided.
Adapt the slope control for SDAH output stage.
TM
S
N40P112
Master code
F/S mode
BUF
NA Sr
which is 500ns.
Slave Address
Hs mode (current source for SCLH enabled)
SU.STA
which is 160ns for HS-mode. The device stays in HS-mode as long as it does not
R/W
Revision 1.1
A
< n bytes + ack >
DATA
NA
A/
P
Sr
Hs mode continues
Slave Address
F/S mode
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