4-18
DSP56309UM/D MOTOROLA
Core Configuration
PLL Control Register
4.7
PLL CONTROL REGISTER
The PLL Control (PCTL) register is an X-I/O mapped, 24-bit, read/write register that
directs the operation of the on-chip PLL. The PCTL control bits are shown in
Refer to the
DSP56300
Family Manual
for a full description of the PCTL.
4.7.1
PCTL PLL Multiplication Factor Bits 0Ð11
The multiplication factor
bits (MF[11:0]) define the Multiplication Factor (MF) that is
applied to the PLL input frequency. The MF bits are cleared during a DSP56309
hardware reset, which corresponds to an MF of one.
4.7.2
PCTL XTAL Disable Bit (XTLD) Bit 16
The XTAL disable bit (XTLD) controls the on-chip crystal oscillator XTAL output. The
XTLD bit is cleared during a DSP56309 hardware reset, which means that the XTAL
output signal is active, permitting normal operation of the crystal oscillator.
4.7.3
PCTL Predivider Factor Bits (PD0ÐPD3) Bits 20Ð23
The predivider factor bits (PD0ÐPD3) define the predivision factor (PDF) to be applied to
the PLL input frequency. The PD0ÐPD3 bits are cleared during a DSP56309 hardware
reset, which corresponds to a PDF of one.
4.8
DEVICE IDENTIFICATION REGISTER (IDR)
The device identification register (IDR) is a 24-bit, read-only factory programmed
register that identifies DSP56300 family members. It specifies the derivative number and
11
10
9
8
7
6
5
4
3
2
1
0
MF11
MF10
MF9
MF8
MF7
MF6
MF5
MF4
MF3
MF2
MF1
MF0
23
22
21
20
19
18
17
16
15
14
13
12
PD3
PD2
PD1
PD0
COD
PEN
PSTP
XTLD
XTLR
DF2
DF1
DF0
AA0852
Figure 4-4
PLL Control (PCTL) Register
Содержание DSP56309
Страница 25: ...xxii DSP56309UM D MOTOROLA Figure D 25 Port E Registers PCRE PRRE PDRE D 39 ...
Страница 30: ...MOTOROLA DSP56309UM D 1 1 SECTION 1 DSP56309 OVERVIEW ...
Страница 47: ...1 18 DSP56309UM D MOTOROLA DSP56309 Overview DSP56309 Architecture Overview ...
Страница 48: ...MOTOROLA DSP56309UM D 2 1 SECTION 2 SIGNAL CONNECTION DESCRIPTIONS ...
Страница 85: ...2 38 DSP56309UM D MOTOROLA Signal Connection Descriptions OnCE JTAG Interface ...
Страница 86: ...MOTOROLA DSP56309UM D 3 1 SECTION 3 MEMORY CONFIGURATION ...
Страница 104: ...MOTOROLA DSP56309UM D 4 1 SECTION 4 CORE CONFIGURATION ...
Страница 124: ...MOTOROLA DSP56309UM D 5 1 SECTION 5 GENERAL PURPOSE I O ...
Страница 125: ...5 2 DSP56309UM D MOTOROLA General Purpose I O 5 1 INTRODUCTION 5 3 5 2 PROGRAMMING MODEL 5 3 ...
Страница 128: ...MOTOROLA DSP56309UM D 6 1 SECTION 6 HOST INTERFACE HI08 ...
Страница 166: ...MOTOROLA DSP56309UM D 7 1 SECTION 7 ENHANCED SYNCHRONOUS SERIAL INTERFACE ESSI ...
Страница 212: ...MOTOROLA DSP56309UM D 8 1 SECTION 8 SERIAL COMMUNICATION INTERFACE SCI ...
Страница 241: ...8 30 DSP56309UM D MOTOROLA Serial Communication Interface SCI GPIO Signals and Registers ...
Страница 242: ...MOTOROLA DSP56309UM D 9 1 SECTION 9 TRIPLE TIMER MODULE ...
Страница 269: ...9 28 DSP56309UM D MOTOROLA Triple Timer Module Timer Operational Modes ...
Страница 270: ...MOTOROLA DSP56309UM D 10 1 SECTION 10 ON CHIP EMULATION MODULE ...
Страница 302: ...MOTOROLA DSP56309UM D 11 1 SECTION 11 JTAG PORT ...
Страница 369: ...C 22 DSP56309UM D MOTOROLA DSP56309 BSDL Listing ...
Страница 370: ...MOTOROLA DSP56309UM D D 1 APPENDIX D PROGRAMMING REFERENCE ...
Страница 405: ......
Страница 409: ......