KMA215 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved.
Product data sheet Rev. 1 — 24 February 2014 13 of 50
NXP Semiconductors
KMA215
Programmable angle sensor with SAE J2716 SENT
[1] MSN.
[2] LSN.
[3] For detailed diagnostic information, the serial data communication can be enabled.
For the 12-bit high-speed mode H.3 clamping levels must be set to the correct values to
comply to the SAE J2716 SENT specification. Otherwise angular values overwrite
reserved data range for diagnostic information. The angular range multiplier and clamp
switch angle must also be adapted thus the desired angular range is mapped to the
remaining data range correctly.
Settings for high-speed 12-bit fast mode 180 full angular range; also see Table 33
:
CLAMP_LO: 0001h
CLAMP_HI: 0FF8h
ANG_RNG_MULT: 3FE0h
The KMA215 supports the high-speed 12-bit message format H.3 in different
configurations which can be programmed in the configuration register. Shorthand
notations of available configurations are listed in Table 15
.
[1] 2.7 s 10 %.
Table 14. DATA nibbles D0 to D3: angular value
The MSB of each nibble is always zero.
D0
[1]
D1 D2 D3
[2]
12-bit value Angle
0000 0000 0000 0000 0 initialization; the initialization message is transmitted during the
sensor initialization phase until valid value is available
0000 0000 0000 0001 1 0
::::: :
0111 0111 0111 0000 4088
max
0111 0111 0111 0001 4089 reserved
0111 0111 0111 0010 4090 diagnostic condition
[3]
0111 0111 0111 0011 4091 reserved
0111 0111 0111 0100 4092 reserved
0111 0111 0111 0101 4093 reserved
0111 0111 0111 0110 4094 reserved
0111 0111 0111 0111 4095 reserved
Table 15. High-speed 12-bit message format H.3 configurations
Shorthand notation SENT
mode
SENT
release
Clock
tick time
DATA
nibbles
PAUSE
pulse
Serial
message
Data
format
SENT201x-03.0us-4dn-npp-nsp-H.3 20h 201x 3.0 s
[1]
4nono H.3
SENT201x-03.0us-4dn-npp-esp-H.3 21h 201x 3.0 s
[1]
4noyesH.3
