SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
GPTM Timer A Value (GPTMTAV)
When read, this register shows the current, free-running value of Timer A in all modes. Software can use this value to determine the time elapsed between an interrupt and the ISR entry when using the snapshot feature with the periodic operating mode. When written, the value written into this register is loaded into the GPTMTAR register on the next clock cycle.
NOTE
When an alternate clock source is enabled, a read of this register returns the current count -1.
When a 16/32-bit GPTM is configured to one of the 32-bit modes, GPTMTAV appears as a 32-bit register (the upper 16-bits correspond to the contents of the GPTM Timer B Value (GPTMTBV) register). In a 16-bit mode, bits 15:0 contain the value of the counter and bits 23:16 contain the current, free-running value of the prescaler, which is the upper 8 bits of the count in Input Edge Count, Input Edge Time, PWM and one-shot or periodic up count modes. In one-shot or periodic down count modes, the prescaler stored in 23:16 is a true prescaler, meaning bits 23:16 count down before decrementing the value in bits 15:0. The prescaler in bits 31:24 always reads as 0.
GPTMTAV is shown in Figure 18-28 and described in Table 18-31.
Return to Summary Table.
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| TAV | |||||||||||||||||||||||||||||||
| R/W-0xFFFFFFFF | |||||||||||||||||||||||||||||||