Chapter 7 8-Bit Timer 1 Tm1; 8-Bit Timer 1 Tm1 Functions - NEC mPD780852 Series Preliminary User's Manual

7.1 8-Bit Timer 1 TM1 Functions

The 8-bit timer 1 TM1 operates as an 8-bit interval timer.
Figure 7-1 shows timer 1 TM1 block diagram.
f
f
f
f
f
f
X
Timer clock select register 1 (TCL1)

CHAPTER 7 8-BIT TIMER 1 TM1

Figure 7-1. 8-Bit Timer 1 TM1 Block Diagram
Internal bus
8-bit compare register 1 (CR1)
3
/2
X
4
/2
X
5
/2
X
7
/2
X
9
/2
X
11
/2
3
TCL12 TCL11 TCL10
Internal bus
Preliminary User's Manual U14581EJ3V0UM00
Coincidence
8-bit counter (TM1)
Clear
TCE1
Timer mode control register (TMC1)
INTTM1
113