Product data

MFRC631 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved.
Product data sheet
COMPANY PUBLIC
Rev. 3.3 — 4 February 2014
227433 80 of 120
NXP Semiconductors
MFRC631
High performance ISO/IEC 14443 A/B reader solution
9.7.2.23 T4CounterValHi
High byte of the counter value of the 16-bit timer 4.
9.7.2.24 T4CounterValLo
Low byte of the counter value of the 16-bit timer 4.
9.8 Transmitter configuration registers
9.8.1 TxMode
Table 115. T4ReloadLo register (address 25h)
Bit 7 6 5 4 3 2 1 0
Symbol T4ReloadLo
Access
rights
r/w
Table 116. T4ReloadLo bits
Bit Symbol Description
7 to 0 T4ReloadLo Defines the low byte of the reload value of the timer 4. With the start
event the timer loads the value of the T4ReloadVal. Changing this
register affects the timer only at the next start event.
Table 117. T4CounterValHi register (address 26h)
Bit 7 6 5 4 3 2 1 0
Symbol T4CounterValHi
Access
rights
dy
Table 118. T4CounterValHi bits
Bit Symbol Description
7 to 0 T4CounterValHi High byte of the current counter value of timer 4.
Table 119. T4CounterValLo register (address 27h)
Bit 7 6 5 4 3 2 1 0
Symbol T4CounterValLo
Access
rights
dy
Table 120. T4CounterValLo bits
Bit Symbol Description
7 to 0 T4CounterValLo Low byte of the current counter value of the timer 4.
Table 121. DrvMode register (address 28h)
Bit 7 6 5 4 3 2 1 0
Symbol Tx2Inv Tx1Inv - - TxEn TxClk Mode
Access
rights
r/w r/w RFU RFU r/w r/w