Datasheet

www.ti.com

FlexRay Module Registers

26.3.2.2.8 Timer 0 Configuration Register (T0C)

This absolute timer specifies, in terms of cycle count and macrotick, the point in time when the timer 0

interrupt occurs. The timer 0 interrupt generates a non maskable interrupt signal on CC_tint0.

Timer 0 can be activated as long as the POC is either in NORMAL_ACTIVE state or in

NORMAL_PASSIVE state. Timer 0 is deactivated when leaving NORMAL_ACTIVE state or

NORMAL_PASSIVE state except for transitions between the two states.

Before reconfiguration of the timer, the timer has to be halted first by writing bit T0RC to 0.

Figure 26-124 and Table 26-109 illustrate this register.

Figure 26-124. Timer 0 Configuration Register (T0C) [offset_CC = 44h]

31 30 29 16

Reserved TOMO

R-0 R/W-0

15 14 8 7 2 1 0

Rsvd TOCC Reserved TOMS TORC

R-0 R/W-0 R-0 R/W-0 R/W-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 26-109. Timer 0 Configuration Register (T0C) Field Descriptions

Bit Field Value Description

31-30 Reserved 0 Read returns 0. Writes have no effect.

29-16 TOMO 0-3FFFh Timer 0 macrotick offset. Configures the macrotick offset from the beginning of the cycle where the

interrupt is to occur. The Timer 0 interrupt occurs at this offset for each cycle in the cycle set.

15 Reserved 0 Read returns 0. Writes have no effect.

14-8 TOCC 0-FFh Timer 0 cycle code. The 7-bit timer 0 cycle code determines the cycle set used for generation of

the timer 0 interrupt.

7-2 Reserved 0 Read returns 0. Writes have no effect.

1 TOMS Time 0 mode select.

0 Single-shot mode

1 Continuous mode

0 TORC Timer 0 run control

0 Timer 0 halted

1 Timer 0 running

1297

SPNU563–May 2014 FlexRay Module

Submit Documentation Feedback