TMP89FS60 datasheet(160/410 Pages) TOSHIBA

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Page 146

13. 16-bit Timer Counter (TCA)

13.2 Control

TMP89FS60

RA001

Note 1: TA0OVF, TA0CPFA and TA0CPFB are cleared to "0" automatically after TA0SR is read. Writing to TA0SR is invalid.

Note 2: When a read instruction is executed on TA0SR, bits 6 to 2 are read as "0".

Note 1: When a write instruction is executed on TA0DRAL (TA0DRBL), the set value does not become effective immedi-

ately, but is temporarily stored in the temporary buffer. Subsequently, when a write instruction is executed on the

higher-level register, TA0DRAH (TA0DRBH), the 16-bit set values are collectively stored in the double buffer or

TA0DRAL/H. When setting data to the timer counter A0 register, be sure to write the data into the lower level reg-

ister and the higher level in this order.

Note 2: The timer counter A0 register is not writable in the pulse width measurement mode.

Timer counter A0 status register

TA0SR

76543

210

(0x0033)

Bit Symbol

TA0OVF

----

TA0CPFA

TA0CPFB

Read/Write

RRRRRRRR

After reset

00000

000

TA0OVF

Overflow flag

No overflow has occurred.

At least an overflow has occurred.

TA0CPFA

Capture completion flag A

No capture operation has been executed.

At least a pulse width capture has been executed in the double-edge

capture.

TA0CPFB

Capture completion flag B

No capture operation has been executed.

At least a capture operation has been executed in the single-edge cap-

ture.

At least a pulse duty width capture has been executed in the double-

edge capture.

Timer counter A0 register AH

TA0DRAH

141312

(0x002E)

Bit Symbol

TA0DRAH

Read/Write

R/W

After reset

11111

111

Timer counter A0 register AL

TA0DRAL

76543

210

(0x002D)

Bit Symbol

TA0DRAL

Read/Write

R/W

After reset

11111

111

Timer counter A0 register BH

TA0DRBH

141312

(0x0030)

Bit Symbol

TA0DRBH

Read/Write

R/W

After reset

11111

111

Timer counter A0 register BL

TA0DRBL

76543

210

(0x002F)

Bit Symbol

TA0DRBL

Read/Write

R/W

After reset

11111

111

TMP89FS60 Datasheet(PDF) 160 Page - Toshiba Semiconductor

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