16-Bit Free-Running Timer Registers - Fujitsu FR60 Hardware Manual

CHAPTER 7 16-BIT FREE-RUNNING TIMER AND 16-BIT RELOAD TIMER
7.1.2

16-bit Free-Running Timer Registers

This section describes the configuration and functions of the registers used by the 16-
bit free-running timer.
■ Timer Data Register (TCDT)
The timer data register is used to read the count value of the 16-bit free-running timer.
The bit configuration of the timer data register (TCDT) is shown below.
TCDT
Address: 0000D4
The counter value is cleared to "0000" when the counter is reset. A timer value can be set by writing a
value to the timer data register. Always write a value to this register in stop mode (STOP = 1). This register
must be accessed in word units.
The 16-bit free-running timer is initialized when one of the following events occurs:
• Reset
• Clearing (CLR) of the control status register
• Match for the value of the compare clear register (compare register for ch0) and the value of the timer
counter (A mode setting is required.)
280
15 14 13
T15 T14 T13
H
R/W R/W R/W
7 6 5
T07 T06 T05
R/W R/W R/W
12 11 10
T12 T11 T10 T09
R/W R/W R/W R/W
4 3 2
T04 T03 T02 T01
R/W R/W R/W R/W
9 8 Initial value
0000
T08
H
R/W
1 0
T00
R/W