uPD780065 Subseries PUM - Renesas Electronics

6.3 16-Bit Timer/Event Counter Configuration
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CHAPTER 6 16-BIT TIMER/EVENT COUNTER
16-bit timer/event counter consists of the following hardware.
Table 6-2. 16-Bit Timer/Event Counter Configuration
Item Configuration
Timer register 16 bits × 1 (TM0)
Register Capture/compare register: 16 bits × 2 (CR00, CR01)
Timer output 1 (TO0)
Control register 16-bit timer mode control register 0 (TMC0)
Capture/compare control register 0 (CRC0)
16-bit timer output control register 0 (TOC0)
Prescaler mode register 0 (PRM0)
Port mode register 2 (PM2) Note
Note See Block Diagram of Figure 4-3 P20 to P27.
(1) 16-bit timer/counter 0 (TM0)
TM0 is a 16-bit read-only register that counts count pulses.
The counter is incremented in synchronization with the rising edge of an input clock. If the count value is read
during operation, input of the count clock is temporarily stopped, and the count value at that point is read.
The count value is reset to 0000H in the following cases:
At RESET input
If TMC03 and TMC02 are cleared
If valid edge of TI00 is input in the clear & start mode by inputting valid edge of TI00
If TM0 and CR00 coincide with each other in the clear & start mode on coincidence between TM0 and CR00
OSPT is set in the one-shot pulse output mode
Preliminary User’s Manual U13420EJ2V0UM00