HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 1086

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 30
(4)
In order to retain the clock duty from power-on, the following switching procedure should be
used.
1. The initial state is set to port-input with high impedance. In order to fix the potential, a pull-up
2. Use the CKE1 bit in the serial control register (SCSCR) to fix the specified output.
3. Set the CKE0 bit in SCSCR to 1 to start clock output.
Rev. 3.00 Jan. 18, 2008 Page 1024 of 1458
REJ09B0033-0300
resistance/pull-down resistance is used.
Power-On and Clock Output
SIM_CLK
SIM Card Module (SIM)
Figure 30.10
Normal operation
(1) (2) (3)
Procedure for Stopping Clock and Restarting
(4)
Standby mode
(5) (6) (7)
Normal operation