SH7615 Datasheet, PDF (149/925 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH
RISC engine Family/SH7600 Series

Table 3.3 Clock Mode Pin Settings and States
Clock
Mode
CKPREQ/
MD2 MD1 MD0 CKM
Pin
EXTAL
XTAL
CKIO
0
0
0
0
0
1
Clock input
Crystal
oscillation
Open
Crystal
oscillation
Output/high
impedance
1
0
0
1
0
1
Clock input
Crystal
oscillation
Open
Crystal
oscillation
Output/high
impedance
2
0
1
0
0
1
Clock input
Crystal
oscillation
Open
Crystal
oscillation
Output/high
impedance
3
0
1
1
0
1
Clock input
Crystal
oscillation
Open
Crystal
oscillation
High
impedance
4
1
0
0
*
Open
Open
Clock input
5
1
0
1
Open
Open
Clock input
6
1
1
0
Open
Open
Clock input
Notes: Do not use in combinations other than those listed.
* In clock modes 4, 5, and 6, CKPREQ/CKM functions as the clock pause request pin.
Rev. 2.00, 03/05, page 111 of 884