SH7050 Datasheet, PDF (243/841 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH RISC engine Family/

Section 10 Advanced Timer Unit (ATU)
Bit 2:
CKSEL2
0
1
Bit 1:
CKSEL1
0
1
0
1
Bit 0:
CKSEL0
0
1
0
1
0
1
0
1
Description
Internal clock φ": counting on φ'
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
(Initial value)
Timer Control Registers 6 to 9 (TCR6 to TCR9)
Bit: 7
6
5
4
—
—
—
—
Initial value: 0
0
0
0
R/W: R
R
R
R
3
2
1
0
— CKSEL2 CKSEL1 CKSEL0
0
0
0
0
R
R/W R/W R/W
Bits 7 to 3—Reserved: These bits are always read as 0, and should only be written with 0.
Bits 2 to 0—Clock Select 2 to 0 (CKSEL2 to CKSEL0): 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 2:
CKSEL2
0
1
Bit 1:
CKSEL1
0
1
0
1
Bit 0:
CKSEL0
0
1
0
1
0
1
0
1
Description
Internal clock φ": counting on φ'
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
Cannot be set
Cannot be set
(Initial value)
Rev. 5.00 Jan 06, 2006 page 223 of 818
REJ09B0273-0500