4 pll/subclock control register (psccr), Pll/subclock control register (psccr) – FUJITSU F2MCTM-16LX User Manual

Page 117

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CHAPTER 5 CLOCKS

5.4

PLL/Subclock Control Register (PSCCR)

PLL/Subclock control register selects the PLL multiplication rate and subclock division
rate. This register is write only. Read value of all bits is set to "1".

Configuration of the PLL/Subclock Control Register (PSCCR)

Figure 5.4-1 shows the configuration of the PLL/Subclock control register (PSCCR). Table 5.4-1 shows the

function of each bit in the PLL/subclock control register (PSCCR).

Figure 5.4-1 Configuration of the PLL/Subclock Control Register (PSCCR)

Address

15

14

13

12

11

10

9

8

Reset value

0000CF

H

Re-

served

SCDS

Re-

served

CS2

XXXX0000

B

W

W

W

W

W

: Write only

X

: Undefined

: Unused

: Initial value

bit8

CS2

Multiplication rate selection bit

0

See the clock selection register
(CKSCR).

1

bit9

Reserved

Reserved bit

0

Always write "0" to this bit.
Read value is always "1".

bit10

SCDS

Subclock division selection bit

0

4 division

1

2 division

bit11

Reserved

Reserved bit

0

Always write "0" to this bit.
Read value is always "1".

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