Watch Counter Data Register (Wcdr) - Fujitsu F2MC-8FX Hardware Manual

CHAPTER 14 WATCH COUNTER
14.3.1

Watch Counter Data Register (WCDR)

The watch counter data register (WCDR) is used to select the count clock and set the
counter reload value.
Watch Counter Data Register (WCDR)
bit7
Address
CS1
0FE3
H
R/W R/W R/W R/W R/W R/W
: Initial value
R/W: Readable/writable (Read value is the same as write value)
F : Subclock
CL
210
Figure 14.3-2 Watch Counter Data Register (WCDR)
bit6 bit5 bit4 bit3
RCTR5 RCTR4 RCTR3
CS0
bit2 bit1 bit0 Initial value
00111111
RCTR2 RCTR1RCTR0
R/W R/W
RCTR5 to These bits set the counter reload value.
RCTR0 (Initial value = 3F
CS1 CS0 Count clock select bits (F
12
0 0
2 /F (125ms)
CL
13
0 1 2 /F (250ms)
CL
14
1 0 2 /F (500ms)
CL
15
1 1
2 /F (1s)
CL
B
)
H
= 32.768kHz)
CL