HD64570 Datasheet, PDF (23/469 Pages) Hitachi Semiconductor – Serial Communications Adaptor

Internal data bus
Timer expand prescale register (TEPR)
— — — — — ECKS2ECKS1ECKS0
3
Divider
Timer constant
register
(TCONR)
Clock
Timer up-
counter
(TCNT)
–.. N
N=
BC* _{–.. 8}
φ
8 ₂0 _{– 2}7
Comparator
Counter
reset
CMF ECMI — TME — — — —
Timer control/status
register (TCSR)
T0IRQ
T1IRQ
T2IRQ
T3IRQ
* Base clock
Figure 1.4 Timer Block Diagram
Rev. 0, 07/98, page 7 of 453