upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 245

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

6.4.1 Control register
(1)
(2)
PLLCTL0
PLLCTL1
Symbol
Symbol
R/W
R/W
PLL0 control register 0 (PLLCTL0)
This is an 8-bit register that enables PLL0 operation. This register can be written in 8-bit units.
After reset, an firmware initializes this register to 00H so that the PLL0 is enabled and in a locked
status.
Always write 00H to this register. However, the user is not required to initialize due to internal
firmware processing.
PLL1 control register 1 (PLLCTL1)
This is an 8-bit register that enables PLL1 operation. This register can be written in 8-bit units.
Before PLL1 can be used (before MCKSEL=1 and SELPLL=1), this register must be initialized to
00H. Always write 00H to this register.
W
W
7
7
-
-
W
W
6
6
Figure 6-10: PLL Control Register (PLLCTL0) Format
-
Figure 6-11: PLL Control Register (PLLCTL1) Format
-
W
W
5
5
User’s Manual U16702EE3V2UD00
-
-
Chapter 6 Clock Generator
W
W
4
4
-
-
W
W
3
3
-
-
W
W
2
2
-
-
W
W
1
1
-
-
W
W
0
0
-
-
FFFFF82CH
FFFFF82DH
Address
Address
After reset
After reset
00H
00H
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