SH7059 Datasheet, PDF (280/1042 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

11. Advanced Timer Unit-II (ATU-II)
• Bits 2 to 0—Clock Select A2 to A0, C2 to C0 (CKSELA2 to CKSELA0, CKSELC2 to CKSELC0): 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:
CKSELx2
0
Bit 1
CKSELx1
0
1
1
0
1
Note: x = A or C
Bit 0
CKSELx0
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
Setting prohibited
Setting prohibited
(Initial value)
Timer Control Register 8 (TCR8)
Bit:
Initial value:
R/W:
7
6
5
4
3
2
1
0
—
CKSELB2 CKSELB1 CKSELB0
—
CKSELA2 CKSELA1 CKSELA0
0
0
0
0
0
0
0
0
R
R/W
R/W
R/W
R
R/W
R/W
R/W
The CKSELAx bits relate to DCNT8A to DCNT8H, and the CKSELBx bits relate to DCNT8I to DCNT8P.
• Bit 7—Reserved: This bit is always read as 0. The write value should always be 0.
• Bits 6 to 4—Clock Select B2 to B0 (CKSELB2 to CKSELB0): These bits, relating to counters DCNT8I to DCNT8P,
select clock φ", scaled from the internal clock source, from φ', φ'/2, φ'/4, φ'/8, φ'/16, and φ'/32.
Bit 6:
CKSELB2
0
1
Bit 5:
CKSELB1
0
1
0
1
Bit 4:
CKSELB0
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
Setting prohibited
Setting prohibited
(Initial value)
• Bit 3—Reserved: This bit is always read as 0. The write value should always be 0.
Rev.3.00 Mar. 12, 2008 Page 190 of 948
REJ09B0177-0300