UPD78F0411GA-GAM-AX Datasheet, PDF (223/564 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 7 8-BIT TIMER/EVENT COUNTERS 50, 51, AND 52
(1) 8-bit timer counter 5n (TM5n)
TM5n is an 8-bit register that counts the count pulses and is read-only.
The counter is incremented in synchronization with the rising edge of the count clock.
Figure 7-4. Format of 8-Bit Timer Counter 5n (TM5n)
Address: FF16H (TM50), FF6FH (TM51), FF51H (TM52) After reset: 00H R
Symbol
TM5n
(n = 0-2)
In the following situations, the count value is cleared to 00H.
<1> Reset signal generation
<2> When TCE5n is cleared
<3> When TM5n and CR5n match.
(2) 8-bit timer compare register 5n (CR5n)
CR5n can be read and written by an 8-bit memory manipulation instruction.
The value set in CR5n is constantly compared with the 8-bit timer counter 5n (TM5n) count value, and an
interrupt request (INTTM5n) is generated if they match.
The value of CR5n can be set within 00H to FFH.
Reset signal generation sets CR5n to 00H.
Figure 7-5. Format of 8-Bit Timer Compare Register 5n (CR5n)
Address: FF17H (CR50), FF41H (CR51), FF59H (CR52) After reset: 00H R/W
Symbol
CR5n
(n = 0-2)
Caution Do not write other values to CR5n during operation.
Remark n = 0 to 2
User’s Manual U18698EJ1V0UD
221