IC-PMX Datasheet, PDF (21/27 Pages) IC-Haus GmbH – ENERGY HARVESTING MULTITURN COUNTER/ENCODER

iC-PMX
ENERGY HARVESTING MULTITURN COUNTER/ENCODER
Rev A3, Page 21/27
Position Data in Period Counter Mode with a Data Processing FRAM
The revolution counter data in iC-RMF / MB85RDP16LX is optimized against imprint effects of FRAM. iC-PMX
reads the data of the FRAM with the RDTS command to get a decoded data set. Tab. ?? shows the available
data as it is available through the Read POS command.
Position Data in Period Counter Mode with iC-RMF / MB85RDP16LX
Addr
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
0x00
POS(5:0)
0x01
POS(13:6)
0x02
POS(21:14)
0x03
POS(29:22)
0x04
POS(37:30)
0x05
EFLAG(1:0)
INVALID
POS(42:38)
0x06
...
—
0x0E
0x0F
—
C3
C2
Bit 1
LDIR
C1
Bit 0
LPP
C0
Table 16: Position Data in Period Counter Mode with iC-RMF / MB85RDP16LX (pin C0 = 0, pin C1 = 0)
Register Map, Overview
POS:
revolution counter value
LDIR:
direction of last POS change (0 =
incrementing, 1 = decrementing)
LPP:
polarity of last Wiegand pulse (1 =
positive, 0 = negative)
EFLAG(1:0): error information (0 = no error, 1 =
Overflow, 2 = uncorrectable ECC error,
3 = incomplete write access)
INVALID: error information (position data changed
during read access, please discard the
data and read it again)
C3, C2, C1, C0:
Value of the Pins C3-C0, sampled during
the last wiegand pulse processing