M32C83T datasheet(95/527 Pages) RENESAS

95 / 527 page

Page 72

8. Clock Generation Circuit

)

(

Figure 8.7 PLC0 and PLV Registers

PLC00

PLC01

PLC02

(b3)

(b4)

(b5)

(b6)

PLC07

Function

PLL Control Register 0(1)

Programmable Counter

Select Bit(2)

Reserved Bit

Operation Enable Bit(3, 4)

See Table 8.2

0: PLL is Off

1: PLL is On

Set to "0"

Reserved Bit(2)

Set to "0"

Reserved Bit(2)

Set to "1"

Bit Name

Bit

Symbol

Address

After Reset

PLC0

037616

0011 X1002

Reserved Bit

Set to "0"

NOTES:

1. Rewrite the PLC0 register after the PRC0 bit in the PRCR register is set to "1" (write enable).

2. Set these bits when the PLC07 bit is set to "0". Once these bits are set, they cannot be changed.

3. To use the PLL function, the PD8_7 bit in the PD8 register is set to "0" (input) and the CM04 bit in the

CM0 register is set to "0" (I/O port). Set the PD8_6 bit in the PD8 register to "0" (input) before

connecting P86 to Vss.

4. Before the microcomputer enters wait or stop mode, set the CM17 bit to "0" (main clock as CPU clock

source), the PLC07 bit to "0" and PLV00 bit to "0" (cut off power to PLL) in this order.

NOTES:

1. Rewrite the PLV register after the PRC3 bit in the PRCR register is set to "1" (write enable).

2. Before the microcomputer enters wait or stop mode, set the CM17 bit to "0" (main clock as CPU

clock source), the PLC07 bit to "0" (PLL off) and PLV00 bit to "0" (cut off power to PLL) in this order.

Nothing is assigned. When write, set to "0".

When read, its content is indeterminate.

PLV00

(b1)

(b7 - b2)

Function

VDC Control Register for PLL(1)

PLL VDC Enable Bit(2)

0 : Cut off power to PLL

1 : Power to PLL

Bit Name

Bit

Symbol

Address

After Reset

PLV

001716

XXXX XX012

Nothing is assigned. When write, set to "0".

When read, its content is indeterminate.

M32C83T датащи(PDF) 95 Page - Renesas Technology Corp

M32C83T датащи(HTML) 95 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL