MC908GR32AVFAE Freescale Semiconductor, MC908GR32AVFAE Datasheet - Page 82
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MC908GR32AVFAE
Manufacturer Part Number
MC908GR32AVFAE
Description
IC MCU 8BIT 32K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GR32ACFJE.pdf
(314 pages)
Specifications of MC908GR32AVFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
48-LQFP
Controller Family/series
HC08
No. Of I/o's
37
Ram Memory Size
1.5KB
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
SCI, SPI
Rohs Compliant
Yes
Processor Series
HC08GR
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1.5 KB
Interface Type
ESCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
53
Number Of Timers
8
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 24 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908GR32AVFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Clock Generator Module (CGM)
VPR1 and VPR0 — VCO Power-of-Two Range Select Bits
4.5.2 PLL Bandwidth Control Register
The PLL bandwidth control register (PBWC):
AUTO — Automatic Bandwidth Control Bit
82
These read/write bits control the VCO’s hardware power-of-two range multiplier E that, in conjunction
with L controls the hardware center-of-range frequency, f
PLLON bit is set. Reset clears these bits. (See
4.5.5 PLL VCO Range Select
•
•
•
•
This read/write bit selects automatic or manual bandwidth control. When initializing the PLL for manual
operation (AUTO = 0), clear the ACQ bit before turning on the PLL. Reset clears the AUTO bit.
1 = Automatic bandwidth control
0 = Manual bandwidth control
Selects automatic or manual (software-controlled) bandwidth control mode
Indicates when the PLL is locked
In automatic bandwidth control mode, indicates when the PLL is in acquisition or tracking mode
In manual operation, forces the PLL into acquisition or tracking mode
Address:
if the PLL is off. Therefore, PLLON cannot be cleared when BCS is set, and
BCS cannot be set when PLLON is clear. If the PLL is off (PLLON = 0),
selecting CGMVCLK requires two writes to the PLL control register. (See
4.3.8 Base Clock Selector
Verify that the value of the VPR1 and VPR0 bits in the PCTL register are
appropriate for the given reference and VCO clock frequencies before
enabling the PLL. See
on selecting the proper value for these control bits.
Reset:
Read:
Write:
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
1. Do not program E to a value of 3.
$0037
AUTO
Bit 7
Figure 4-5. PLL Bandwidth Control Register (PBWC)
0
VPR1 and VPR0
Table 4-4. VPR1 and VPR0 Programming
= Unimplemented
00
01
10
LOCK
Register.)
6
0
4.3.6 Programming the PLL
ACQ
Circuit.).
5
0
2
NOTE
E
0
1
(1)
4.3.3 PLL
R
4
0
0
= Reserved
VRS
3
0
0
Circuits,
VCO Power-of-Two
Range Multiplier
. VPR1:VPR0 cannot be written when the
for detailed instructions
1
2
4
4.3.6 Programming the
2
0
0
1
0
0
Freescale Semiconductor
Bit 0
R
0
PLL, and
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