L9805 datasheet(46/103 Pages) STMICROELECTRONICS

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L9805

16-BIT TIMER (Cont’d)

INPUT CAPTURE 1 HIGH REGISTER (ICHR1)

Timer1 Register Address: 0034h

Timer2 Register Address: 0044h

Read Only

Reset Value: Undefined

This is an 8-bit read only register that contains the

high part of the counter value (transferred by the

input capture 1 event).

INPUT CAPTURE 1 LOW REGISTER (ICLR1)

Timer1 Register Address: 0035h

Timer2 Register Address: 0045h

Read Only

Reset Value: Undefined

This is an 8-bit read only register that contains the

low part of the counter value (transferred by the in-

put capture 1 event).

OUTPUT

COMPARE

HIGH

(OCHR1)

Timer1 Register Address: 0036h

Timer2 Register Address: 0046h

Read/Write

Reset Value: 1000 0000 (80h)

This is an 8-bit register that contains the high part

of the value to be compared to the CHR register.

OUTPUT

COMPARE

LOW

(OCLR1)

Timer1 Register Address: 0037h

Timer2 Register Address: 0047h

Read/Write

Reset Value: 0000 0000 (00h)

This is an 8-bit register that contains the low part of

OUTPUT

COMPARE

HIGH

(OCHR2)

Timer1 Register Address: 003Eh

Timer2 Register Address: 004Eh

Read/Write

Reset Value: 1000 0000 (80h)

This is an 8-bit register that contains the high part

of the value to be compared to the CHR register.

OUTPUT

COMPARE

LOW

(OCLR2)

Timer1 Register Address: 003Fh

Timer2 Register Address: 004Fh

Read/Write

Reset Value: 0000 0000 (00h)

This is an 8-bit register that contains the low part of

the value to be compared to the CLR register.

COUNTER HIGH REGISTER (CHR)

Timer1 Register Address: 0038h

Timer2 Register Address: 0048h

Read Only

Reset Value: 1111 1111 (FFh)

This is an 8-bit register that contains the high part

of the counter value.

MSB

LSB

MSB

LSB

MSB

LSB

MSB

LSB

MSB

LSB

MSB

LSB

MSB

LSB

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