Figure 7.3.1 Pwm Control Register (Cntr) - Fujitsu F2MC-8L MB89620 Series Hardware Manual

7.3 Structure of 8-bit PWM Timer
7.3.1 PWM Control Register (CNTR)
The PWM control register (CNTR) is used to select the operating mode of the 8-bit
PWM timer (interval timer operation or PWM timer operation), enable or disable
operation, select the count clock, control interrupts, and check the state of the 8-bit
PWM timer.
n PWM Control Register (CNTR)
Address
0012
H
144
CHAPTER 7 8-BIT PWM TIMER
Bit 7 Bit 6 Bit 5 Bit 4
P/TX — P1 P0
R/W R/W R/W
TIE Interrupt request enable bit
0 Disables interrupt request output.
1 Enables interrupt request output.
OE
0 Functions as a general-purpose port (P37).
1 Functions as the interval timer/PWM timer output pin (PTO).
TIR
Interval timer function
0
Counter value and set value do not match.
1 Counter value and set value match.
TPE Counter operation enable bit
0 Stops count operation.
1 Starts count operation.
P1 P0 Clock selection bits
0 0
Internal
0 1 count
clock
1 0
1 1 PWC output
P/TX Operating mode selection bit
0 Operates as an interval timer.
1 Operates as a PWM timer.

Figure 7.3.1 PWM Control Register (CNTR)

Bit 3 Bit 2 Bit 1
TPE TIR OE
R/W R/W R/W
Output pin control bit
Interrupt request flag bit
Read
PWM timer
function
No change
*1 : t
inst
*2 : The PWC output is the timer output bit of the
pulse width count timer (PCR2: TO).
1 t *1
inst
R/W : Readable and writable
16 t *1
inst
R
64 t *1
inst
W
*2
—
X
Bit 0 Initial value
TIE 0X000000
B
R/W
Write
Clears this bit.
No effect. The bit does not change.
: Instruction cycle
: Read-only
: Write-only
: Unused
: Indeterminate
: Initial value
MB89620 series