MC68HC05T16 Datasheet, PDF (66/128 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit

PAEN - PAC Enable Bit
1 (set) – Pulse Accumulator enabled.
0 (clear) – Pulse Accumulator disabled. PAC counter register is also cleared.
PAMOD - Pulse Accumulator Mode Bit
1 (set) – Gated time accumulation mode.
0 (clear) – External event counting mode.
PAIE - PAC Interrupt Enable Bit
1 (set) – PAC overflow Interrupt enabled.
0 (clear) – PAC overflow Interrupt disabled.
This PAIE bit enables interrupt caused by the PAOF bit.
7.1.2 PAC Counter Register
7
Address bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
$0F PAD7 PAD6 PAD5 PAD4 PAD3 PAD2 PAD1 PAD0 0000 0000
When PAC is disabled (PAEN=0), the counter will be cleared to zero. This ensures the Counter
starts from zero every time it is disabled and enabled.
The Pulse Accumulator Counter is read only and resets to zero a write operation.
MOTOROLA
7-2
PULSE ACCUMULATOR
TPG
MC68HC05T16