upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 253

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

6.6.2 To use clock through mode
When operating mode change to clock through mode, register access
must keep the following order:
6.6.3 to Use the programmable clock output function (PCL)
When use the PCL function, register setting have 1 sequence.
1) MPCCTL = 00H‚(MPCCTL: SELPLL bit = 0
2) MPCCTL = 03H‚MPCCTL: STPPLL0 bit = STPPLL1 bit = 0
• After Reset timing
1) Setting OCKS3 register
2) Setting PCLM: PCK2 - PCK0 bit
3) Setting Port 9 port mode register, PM9
4) Setting Port 9 port mode control register, PMC9
5) Setting Port 9 port mode function register, PFC9
6) Setting Port 9 expanded function register, PFCE9
7) Set PCLM: PCLE bit
• PCL output period change timing
1) Clear PCLE bit to 0 (PCLM register)
2) Setting OCKS3 register
3) Setting PCLM: PCK2 - PCK0 bit
4) Set PCLE bit to 1 (PCLM register)
User’s Manual U16702EE3V2UD00
Chapter 6 Clock Generator
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