SH7052 datasheet(239/919 Pages) RENESAS

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Timer Control Registers 6A, 6B, 7A, 7B (TCR6A, TCR6B, TCR7A, TCR7B)

TCR6A, TCR7A

Bit:

76543210

—

CKSELB2 CKSELB1 CKSELB0

—

CKSELA2 CKSELA1 CKSELA0

Initial value:

00000000

R/W:

R/W

TCR6B, TCR7B

Bit:

76543210

—

CKSELD2 CKSELD1 CKSELD0

—

CKSELC2 CKSELC1 CKSELC0

Initial value:

00000000

R/W:

R/W

• Bit 7—Reserved: This bit always reads 0. The write value should always be 0.

• Bits 6 to 4—Clock Select B2 to B0, D2 to D0 (CKSELB2 to CKSELB0, CKSELD2 to

CKSELD0): These bits select clock

φ", scaled from the internal clock source, from φ', φ'/2,

φ'/4, φ'/8, φ'/16, and φ'/32.

Bit 6:

CKSELx2

Bit 5:

CKSELx1

Bit 4:

CKSELx0

Description

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

Setting prohibited

x = B or D

• Bit 3—Reserved: This bit always reads 0. The write value should always be 0.

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