User's Guide

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NVCYCLE - Non-Volatile Erase Cycles
Non-Volatile Address = 0xC4-0xC5
These read-only non-volatile registers contain the number of lifetime erase
cycles performed for the non-volatile memory. The minimum lifetime erases
is 2,000 erase cycles. Beyond this the erases may not be complete and the
module’s operation can become unpredictable.
Between 13 and 158 non-volatile write operations can be made before
an erase cycle is necessary. Writing the registers from lowest to highest
address maximizes the number of write operations.
It is recommended to write the desired default values to non-volatile
memory and use the volatile registers for values that change frequently.
These registers show the total number of erase cycles that have occurred.
This gives an indication of the remaining life expectancy of the memory.
Figure 86 shows the Non-Volatile Erase Cycles registers.
HumPRO
TM
Series Non-Volatile Erase Cycles Registers
Name
Non-Volatile
Address
Description
NVCYCLE1 0xC4 MSB of the number of erase cycles
NVCYCLE0 0xC5 LSB of the number of erase cycles
Figure 86: HumPRO
TM
Series Non-Volatile Erase Cycles Registers
LSTATUS - Output Line Status
Volatile Address = 0xC6
This register contains the logic states of the output indicator lines, providing
information to the host processor while using fewer GPIO lines.
Each bit in the byte that is returned by the read represents the logic state
of one of the output indicator lines. Figure 88 shows which line each bit
represents.
Figure 87: HumPRO
TM
Series Transceiver Output Line Status Command and Response
HumPRO
TM
Series Output Line Status
Read Command Read Response
Header Size Escape Escape Address ACK Address Value
0xFF 0x03 0xFE 0xFE 0x46 0x06 0xC6 LSTATUS
HumPRO
TM
Series Output Line Status LSTATUS Values
LSTATUS Bit Line Status
0 EX – Exception, 1 = exception has occurred
1 PA_EN – PA Enable, 1 = the transmitter is active
2 LNA_EN – LNA Enable, 1 = the receiver is active
3 CTS – Clear To Send, 1 = incoming data buffer near full
4 MODE_IND – Mode Indicator, 1 = RF data transfer is active (TX or RX)
5 BE – Buffer Empty, 1 = UART buffer is empty
6 Reserved
7 Reserved
Figure 88: HumPRO
TM
Series Output Line Status LSTATUS Values