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 70 of 120
NXP Semiconductors
MFRC631
High performance ISO/IEC 14443 A/B reader solution
9.7 Timer configuration registers
9.7.1 TControl
Control register of the timer section.
The TControl implements a special functionality to avoid the not intended modification of
bits.
Bit 3..0 indicates, which bits in the positions 7..4 are intended to be modified.
Example: writing FFh sets all bits 7..4, writing F0h does not change any of the bits 7..4
9.7.2 T0Control
Control register of the Timer0.
Table 69. TControl register (address 0Eh)
Bit 7 6 5 4 3 2 1 0
Symbol T3Running T2Running T1Running T0Running T3Start
StopNow
T2Start
StopNow
T1Start
StopNow
T0Start
StopNow
Access
rights
dy dy dy dy w w w w
Table 70. TControl bits
Bit Symbol Description
7 T3Running Indicates Timer3 is running.If the bit T3startStopNow is set/reset, this
bit and the timer can be started/stopped
6 T2Running Indicates Timer2 is running. If the bit T2startStopNow is set/reset, this
bit and the timer can be started/stopped
5 T1Running Indicates tTmer1 is running. If the bit T1startStopNow is set/reset, this
bit and the timer can be started/stopped
4 T0Running Indicates Timer0 is running. If the bit T0startStopNow is set/reset, this
bit and the timer can be started/stopped
3T3StartStop
Now
The bit 7 of TControl T3Running can be modified if set
2T2StartStop
Now
The bit 6of TControl T2Running can be modified if set
1T1StartStop
Now
The bit 5of TControl T1Running can be modified if set
0T0StartStop
Now
The bit 4 of TControl T0Running can be modified if set
Table 71. T0Control register (address 0Fh);
Bit 7 6 5 4 3 2 1 0
Symbol T0StopRx - T0Start T0AutoRestart - T0Clk
Access
rights
r/w RFU r/w r/w RFU r/w