7906 datasheet(158/531 Pages) RENESAS

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7906 Group User’s Manual Rev.2.0

8-7

TIMER B

Corresponding pin

Bit

4 to 0

Port P5 direction register (Address D16)

Functions

At reset

R/W

Nothing is assigned.

Pin TB0IN (Pin INT5/IDW)

(Note 1)

Pin TB1IN (Pin INT6/IDV)

(Note 2)

Pin TB2IN (Pin INT7/IDU)

(Note 3)

–

b7 b6 b5 b4 b3 b2 b1 b0

Notes 1: This applies when the TB0IN pin select bit (bit 0 at address AE16) = 0.

2: This applies when the TB1IN pin select bit (bit 1 at address AE16) = 0.

3: This applies when the TB2IN pin select bit (bit 2 at address AE16) = 0.

4: The pins in ( ) are I/O pins of other internal peripheral devices, which are multiplexed with the corresponding port P5 pins.

0 : Input mode

1 : Output mode

When using this pin as timer Bi’s input pin,

be sure to clear the corresponding bit to “0.”

Undefined

Fig. 8.2.6 Relationship between port P5 direction register, port P2 direction register, and timer Bi’s

input pins

8.2.6 Count source (in timer mode and pulse period/pulse width measurement mode)

In the timer mode and pulse period/pulse width measurement mode, the count source select bits (bits 6

and 7 at addresses 5B16 to 5D16) are used to select the count source (f2, f16, f64, or f512). (See Figures 8.3.1

and 8.5.1.)

Pin TA4OUT

Pin TA4IN

Pin TA9OUT

Pin TA9IN

Pin TB0IN

(Note 1)

Pin TB1IN

(Note 2)

Pin TB2IN

(Note 3)

Pin INT3/RTPTRG0

(Note 4)

Port P2 direction register (Address 816)

b7 b6 b5 b4 b3 b2 b1 b0

0 : Input mode

1 : Output mode

When using this pin as timer Bi’s input pin, be sure

to clear the corresponding bit to “0.”

Corresponding pin

Bit

Functions

At reset

R/W

Notes 1: This applies when the TB0IN pin select bit (bit 0 at address AE16) = 1.

2: This applies when the TB1IN pin select bit (bit 1 at address AE16) = 1.

3: This applies when the TB2IN pin select bit (bit 2 at address AE16) = 1.

4: This applies when the INT3/RTPTRG0 pin select bit (bit 3 at address AE16) = 1.

8.2 Block description

7906 Datasheet(PDF) 158 Page - Renesas Technology Corp

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