SH7052 datasheet(238/919 Pages) RENESAS

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• Bits 3 to 0—Clock Select 3 to 0 (CKSEL3 to CKSEL0): These bits select whether an internal

clock or external clock is used.

When an internal clock is selected, scaled clock

φ" is selected from φ', φ'/2, φ'/4, φ'/8, φ'/16, and

φ'/32.

When an external clock is selected, TCLKA, TCLKB, TI10 pin input, or a TI10 pin input

multiplied clock is selected.

When TI10 pin input and TI10 pin input clock multiplication are selected, set CKEG1 and

CKEG0 in TCR10 so that TI10 input is possible.

Bit 3:

CKSEL3

Bit 2:

CKSEL2

Bit 1:

CKSEL1

Bit 0:

CKSEL0

Description

0000

Internal clock

φ": counting on φ'

(Initial value)

Internal clock

φ": counting on φ'/2

Internal clock

φ": counting on φ'/4

Internal clock

φ": counting on φ'/8

Internal clock

φ": counting on φ'/16

Internal clock

φ": counting on φ'/32

External clock: counting on TCLKA pin input

External clock: counting on TCLKB pin input

1000

Counting on TI10 pin input (AGCK)

Counting on multiplied (corrected)(AGCKM) TI10

pin input clock

Setting prohibited

*: Don’t care

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