Fujitsu F2MC-16LX MB90580 Series Hardware Manual page 295

20.3.1.1 16-bit free-run timer data register
16-bit Timer Data Register (Upper)
Address: 00006D
H
Read/write
R/W
Initial value
16-bit Timer Data Register (Lower)
Address: 00006C
Read/write
Initial value
The data register can read the count value of the 16-bit free-run timer. The counter value is cleared to
'0000' upon a reset. The timer value can be set by writing a value to this register. However, ensure that the
value is written while the operation is stopped (STOP=1). The data register must be accessed in word
access mode.
The 16-bit free-run timer is initialized upon the following factors:
• Reset
• Clear bit (CLR) of control status register
• A match between compare register 0 and the timer counter value (This can be performed only in an
appropriate mode.)
MB90580 Series
15 14 13
T15 T14 T13
R/W R/W
0 0 0
7 6
T07 T06
H
R/W R/W
0
12 11 10
T12 T11 T10
R/W R/W R/W
0 0 0
5 4 3
T05 T04 T03
R/W R/W R/W
0 0 0
20.3 Registers and Register Details
Bit Number
9 8
TCDTH
T09 T08
R/W R/W
0 0
2 1 0
T02 T01 T00
R/W R/W R/W
0 0 0 0
Chapter 20: 16-Bit I/O Timer
Bit Number
TCDTL
275