Table of Contents
Advertisement
When the upper byte of OCRF is read, the upper-byte data is sent directly to the CPU. Next when
the lower byte is read, the lower-byte data is sent directly to the CPU.
Figure 9.6 shows a TCF read operation when H'AAFF is read from TCF.
Upper byte read
CPU
(H'AA)
Lower byte read
CPU
(H'FF)
Note: * Becomes H'AB00 if counter is incremented once.
Figure 9.6 TCF Read Operation (TCF → CPU)
Internal data bus
TEMP
(H'FF)
TCFH
TCFL
(H'AA)
(H'FF)
Internal data bus
TEMP
(H'FF)
TCFH
TCFL
(AB) *
(00) *
Rev.3.00 Jul. 19, 2007 page 237 of 532
9. Timers
REJ09B0397-0300
Advertisement
Table of Contents
