Reload/Compare Register 0/1 (Rcr0/1) - Fujitsu F2MC-16LX Hardware Manual

13.2.6 Reload/compare register 0/1 (RCR0/1)

This section describes the configuration and explains the function of reload/compare
register 0/1 (RCR0/1).
I Reload/compare register 0/1 (RCR0/1)
Reload/compare register 0/1 (RCR0/1) has the bit configuration shown below.
Figure 13.2-7 Bit configuration of reload/compare register 0/1 (RCR0/1)
RCR1
Address: 00006B
RCR0
Address: 00006A
Reload/compare registers 0/1 (RCR0/1) are 8-bit reload/compare registers. These registers are
used to specify a reload value and compare value. The reload value and compare value have
the same value and, by starting the reload function and compare function, an up/down count is
available between the 00
This register allows write-only operations but not read operations. By writing "1" to the CCR0/1:
CTUT bit, this register value can be transferred to UDCR (reloading by software).
Write to this register with word access.
15 14 13 12
D17 D16 D15 D14
H
W W W W
7 6 5
D07 D06 D05 D04
H
W W W W
to RCR values (16-bit operation mode: 0000
H
CHAPTER 13 8/16-BIT UP/DOWN COUNTER/TIMER
11 10 9
D13 D12 D11
W W W
4 3 2 1
D03 D02 D01
W W W
8 Initial value
D10 00000000
B
W
0 Initial value
D00 00000000
B
W
to RCR value).
H
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