SH7059 Datasheet, PDF (279/1042 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Timer Control Registers 6A, 6B, 7A, 7B (TCR6A, TCR6B, TCR7A, TCR7B)
TCR6A, TCR7A
Bit:
Initial value:
R/W:
7
6
5
4
3
—
CKSELB2 CKSELB1 CKSELB0
—
0
0
0
0
0
R
R/W
R/W
R/W
R
11. Advanced Timer Unit-II (ATU-II)
2
CKSELA2
0
R/W
1
CKSELA1
0
R/W
0
CKSELA0
0
R/W
TCR6B, TCR7B
Bit:
Initial value:
R/W:
7
6
5
4
3
2
1
0
—
CKSELD2 CKSELD1 CKSELD0
—
CKSELC2 CKSELC1 CKSELC0
0
0
0
0
0
0
0
0
R
R/W
R/W
R/W
R
R/W
R/W
R/W
• 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, 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
0
Bit 5:
CKSELx1
0
1
1
0
1
Note: x = B or D
Bit 4:
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)
• Bit 3—Reserved: This bit is always read as 0. The write value should always be 0.
Rev.3.00 Mar. 12, 2008 Page 189 of 948
REJ09B0177-0300