4524 datasheet(49/310 Pages) RENESAS

49 / 310 page

FUNCTION BLOCK OPERATIONS

4524 Group

HARDWARE

Rev.2.00

Aug, 06 2004

REJ09B0107-0200Z

1-36

W21

Timer 1 underflow signal divided by 2 output

Timer 2 underflow signal divided by 2 output

Stop (state retained)

Operating

Count source

System clock (STCK)

Prescaler output (ORCLK)

Timer 1 underflow signal (T1UDF)

PWM signal (PWMOUT)

CNTR0 output control bit

Timer 2 control bit

Timer 2 count source selection bits

W20

Timer control register W2

at power down : state retained

at reset : 00002

Notes 1: “R” represents read enabled, and “W” represents write enabled.

2: This function is valid only when the timer 1 count start synchronous circuit is selected (I10=“1”).

3: This function is valid only when the timer 3 count start synchronous circuit is selected (I20=“1”).

4: Port C output is invalid when CNTR1 input is selected for the timer 3 count source.

W23

W22

W21

W20

Stop (state initialized)

Operating

Prescaler control bit

Timer control register PA

TPAA

at power down : 02

at reset : 02

PA0

W11

Timer 1 count auto-stop circuit not selected

Timer 1 count auto-stop circuit selected

Stop (state retained)

Operating

Count source

Instruction clock (INSTCK)

Prescaler output (ORCLK)

Timer 5 underflow signal (T5UDF)

CNTR0 input

Timer 1 count auto-stop circuit selection

bit (Note 2)

Timer 1 control bit

Timer 1 count source selection bits

W10

Timer control register W1

R/W

TAW1/TW1A

at power down : state retained

at reset : 00002

W13

W12

W11

W10

W31

Timer 3 count auto-stop circuit not selected

Timer 3 count auto-stop circuit selected

Stop (state retained)

Operating

Count source

PWM signal (PWMOUT)

Prescaler output (ORCLK)

Timer 2 underflow signal (T2UDF)

CNTR1 input

Timer 3 count auto-stop circuit selection

bit (Note 3)

Timer 3 control bit

Timer 3 count source selection bits

(Note 4)

W30

Timer control register W3

at power down : state retained

at reset : 00002

W33

W32

W31

W30

R/W

TAW2/TW2A

R/W

TAW3/TW3A

Table 10 Timer related registers

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